Positions
Prof. Dr.-Ing. habil. Dr. h.c. mult. Dr.-Ing. E. h Peter Wriggers


Prof. Dr.-Ing. habil. Dr. h.c. mult. Dr.-Ing. E. h Peter Wriggers


Prof. Dr.-Ing. habil. Dr. h.c. mult. Dr.-Ing. E. h Peter Wriggers
Phone
Address
An der Universität 1
30823 Garbsen
30823 Garbsen
Executive Director
Institute of Continuum Mechanics
Spokesperson
HorsePower Team
Spokesperson
Multi-Scale Methods for Interface Coupling (MUSIC)
Executive Board
Institute of Continuum Mechanics
Board of Directors
HorsePower Team
Professors
Institute of Continuum Mechanics
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Research projects
Improving Accuracy and Performance of Meshfree Methods
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Process Simulation for Selective Laser MeltingA phase change model for solution with the meshfree Galerkin OTM method is developed.Leaders: Christian Weißenfels, Peter WriggersTeam:Year: 2016
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ISPH-based Simulation of the Selective Laser Melting ProcessDevelopment of a thermo-mechanical model for the simulation of the SLM process.Leaders: Christian Weißenfels, Peter WriggersTeam:Year: 2017
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Using Machine Learning to Improve the Modelling of Machining and Cutting ProcessesMetal cutting is a fundamental process in industrial production. The fast and accurate on-line prediction of metal cutting processes is crucial for the Intelligent Manufacturing (IM). With the advent of high-speed computing, robust numerical algorithms and machine learning technology, computational modelling serves as a tool for not only accurate but also fast predicting the complex machining processes and understanding the complex physics. In this work, the machine learning based numerical model is developed for simulation of metal cutting processes.Leaders: C. Weißenfels, P. WriggersTeam:Year: 2018Sponsors: China Scholarship Council (CSC)
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Peridynamic Petrov-Galerkin MethodA Generalization of the Peridyamic Theory of Correspondenc MaterialsLeaders: Christian Weißenfels, Peter WriggersTeam:Year: 2019
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Numerical simulation of pile installation in a hypoplastic framework using an SPH based MethodIn this project, a 3D computational tool using smoothed particle hydrodynamics (SPH) is developed which based on a hypoplastic constitutive approach for the mechanical behavior of the soil. The numerical code is firstly validated against a benchmark problem. Then several test cases are simulated including monotonic and vibratory penetration of piles into the soil. A good agreement with the experimental observation is found. Additionally, the impact of pile running in the presence of sheetpiles (retainers) are investigated to see how pile running can alter the applied forces on the sheet piles. The simulation of such complex geotechnical problems which involve large deformation, material nonlinearity and moving boundary conditions demonstrates the applicability and versatility of the proposed numerical tool in this field.Leaders: Peter WriggersTeam:Year: 2020
In Silicio Analyses
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Interfacial effects and ingrowing behaviour of magnesium-based foams as bioresorbable bone substitute materialLeaders: P. WriggersTeam:Year: 2016Sponsors: DFG
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Smart hydrogels for drug-delivery and bioprinting applicationsLeaders: Meisam SoleimaniTeam:Year: 2018
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In-stent restenosisLeaders: Michele Marino, Peter WriggersTeam:Year: 2018
Virtual Elements For Engineering Appications
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2D VEM for crack-propagationLeaders: F. Aldakheel, B. Hudobivnik, P. WriggersTeam:Year: 2018Sponsors: IRTG 1627
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Virtual element method (VEM) for phase-field modeling of brittle and ductile fractureLeaders: F. Aldakheel, B. Hudobivnik, P. WriggersYear: 2018Sponsors: DFG SPP 1748
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Virtual Element Method for Dynamic ApplicationsThe Virtual Element Method is a recent developed discretization method, which can be seen as an extension of the classical Galerkin finite element method. It has been applied to various engineering fields, such as elasto-plasticity, multiphysics, damage and fracture mechanics. This project focuses on the extension of VEM towards dynamic applications. In the first part the appropriate computation of the Massmatrix regarding the vitual element ansatzspace will be done. In future works, VEM will be applied to engineering problems, considering the dynamic behavior.Leaders: F. Aldakheel, B. Hudobivnik, P. WriggersTeam:Year: 2019
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Virtual Element Method for 3D ContactContact plays a very important role in engineering problems, where two or more bodies interact with each other through their surfaces. Many techniques were developed in the past, to formulate the contact constraint at the contact interface between two bodies. Nevertheless, VEM provides efficient and robust properties to enforce the contact constraint through the contact interface. Investigations in 2D have been done so far. This work aims an extensions of VEM to 3D contact problems.Leaders: F. Aldakheel, B. Hudobivnik, P. WriggersTeam:Year: 2020
Phase Field Modeling of Fracture in Multi-Field Environments
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Water-induced damage mechanisms of cyclic loaded high-performance concretesLeaders: P. WriggersTeam:Year: 2017Sponsors: DFG SPP 2020, erste FörderperiodeLifespan: 3 Jahre
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Virtual element method (VEM) for phase-field modeling of brittle and ductile fractureLeaders: F. Aldakheel, B. Hudobivnik, P. WriggersYear: 2018Sponsors: DFG SPP 1748
Multiscale and Multifield problems
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Multiscale Method for Hydro-Chemo-Thermo-Mechanics Coupling due to Alkali Silica Reaction in ConcreteAlkali Silica Reaction(ASR) is one of most determinant reasons leading to the deterioration of concrete structures, which can be ascribed to the expansion of gel produced by ASR in the microstructural level of concrete. The challenge in the modeling of ASR is due to the necessity to take into account the presence of heterogeneities and physical processes distributed over multiple length scales. With increasing computation power and the tomography scan technology, it can be implemented by numerical simulation . In this contribution, 3D multiscale hydro-chemo-thermal-mechanical coupling based on a staggered method is demonstrated, which explicitly describes the damage evolution originating from the chemical reaction in the microscale and the dependence on environmental factors.Leaders: P. WriggersTeam:Year: 2009
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MULTIPHYSICS COMPUTATIONAL HOMOGENIZATION METHODOLOGIESComputational homogenization techniques that are amenable to a multiscale implementation are being developed for multiphysics problems at the finite deformation regime. Applications include the estimation of the contact conductance for rough interfaces and the modeling of the coupled thermomechanical response of heterogeneous materials.Leaders: P. Wriggers, I. TemizerYear: 2009
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Direct Numerical Simulation of Multiphase FlowsMultiphase flows consisting of a continuous fluid phase and a dispersed phase of macroscopic particles are present in many engineering applications. In general, a main task in the study of the particle-laden fluid flow of an application is to make predictions about the system's nature for various boundary conditions, since, depending on the volume fraction and mass concentration of the dispersed phase a fluid-particle system shows quite different flow properties. Unfortunately, often it is impossible to investigate such a system experimentally in detail or even at all. An option to capture and to predict its properties is performing a direct numerical simulation of the particulate fluid. For this purpose, an efficient approach is developed in this project by coupling the discrete element method and finite element method.Leaders: P. WriggersTeam:Year: 2009
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Numerical modeling of electrical contactsThe focus of this work is the investigation of the behavior in electrical contacts, where electrical, thermal and mechanical fields are coupled. Specifically, theoretical constitutive models for the electrical conductance and electrical wear phenomena are developed and implemented in a three dimensional finite element setting. Also a new relation for wear is proposed, where the amount of wear is coupled to the dissipation arising at the contact interface. </a></p>Leaders: P. WriggersTeam:Year: 2009
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RAMWASS - Integrated Decision Support System for Risk Assessment and ManagementThe objective of the EU-project RAMWASS is to develop and validate a new decision support system (DSS) for the risk assessment and management for the prevention and/or reduction of the negative impacts caused by human activities on the water/sediment/soil system at river basin scale in fluvial ecosystems.Leaders: P. WriggersTeam:Year: 2009
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Homogenization procedures for coupled thermo-chemo-mechanical problemsIn order to understand processes of continuum damage mechanics it is necessary to investigate thermo-chemo-mechanical coupled processes at micro scale. However for engineering purposes it is still necessary to be able to model these processes at macro scale, especially when large structures have to be designed. Thus a homogenization procedure or a FE^2 framework is necessary to transform the relation, describing the coupled thermo-chemo-mechanical response at micro scale to the macro scale. The related equations and procedures have to be developed and implemented in a finite element software system.Leaders: P. Wriggers, E. BarangerTeam:Year: 2013
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Multi-Fluid Simulations for High Density RatiosAlthough the contact between fluids or gases of different densities is a common event in nature, like the interaction of water and air, the simulation of multiple fluids often comes along with numerous problems. With the Lagrangian description of continuous fluids in terms of the Smoothed Particle Hydrodynamics (SPH) method multi-fluid interactions within the particle scale can simulated. Nevertheless with the standard SPH algorithms multi-fluid problems can not be solved because of the density jumps at the interfaces. Within the project the state of the art of current multi-fluid approaches are compared and evaluated to develop appropriate methods for the simulation of multi-fluid systems with high density ratios.Leaders: P. Wriggers, B. AvciTeam:Year: 2014
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Towards multiscale modeling of Abrasive wearThe work is motivated towards understanding wear as a multiscale-multiphysics approach. A 3D framework is developed to simulate cracks propagation in a microstructure due to contact loading to eventually predict wear trends in filled elastomeric compounds.Leaders: P. WriggersTeam:Year: 2015
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Entropic approach to modeling Mullins effect in non-crystallizing filled elastomersThe work was done in collaboration with Mrs. Aarohi B. Shah and Dr. Julian J Rimoli of School of Aerospace Engineering, Georgia Tech, USA. In this work, we investigate non-crystallizing nanoparticle-reinforced polymers. The effects of the interface rubber between elastomeric matrix and filler particles and its alteration are investigated as a primary cause of Mullins and Payne effect.Leaders: P. Wriggers, J. J. RimoliTeam:Year: 2016
Life time prediction and failure of modern complex materials and structures
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Fatigue lifetime prediction using Wavelet transformation induced multi-time scaling (WATMUS)A fast and accurate numerical method for fatigue lifetime prediction using eXtended Finite Element Method(XFEM) and WATMUSLeaders: S. Löhnert, P. WriggersTeam:Year: 2017
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Creep deformation of nickel based superalloysModeling of nickel based superalloys on two scales using crystal plasticity and XFEM methods.Leaders: P. WriggersTeam:Year: 2018
Material modeling
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DEVELOPMENT OF A MATERIAL MODEL FOR METAL SHEETS AT FINITE DEFORMATION[Translate to Englisch:] Technical procedures claim an improved material model for the simulation of metal forming processes. An effective, anisotropic elastoplastic material model for the macroscopic material behaviour for sheet metals is developed for further usage in commercial finite element programs.Leaders: P. Wriggers, S. LöhnertTeam:Year: 2009
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Multiscale modeling and extended finite element analysis of fracture processes in ceramicsThe extended finite element method (XFEM) enables the modelling and calculation of cracks independent of mesh topologies. Due to this advantage it has become the most widely used method for computations of fracture processes. In the vicinity of a macrocrack front the microstructure of the material can have a significant influence and needs to be considered in detail. Especially microcracks can affect crack propagation drastically. This leads to the necessity of multiscale methods like the multiscale projection method to capture microstructural details where necessary. Even though the XFEM is known to be a comparably accurate method to calculate cracks, discretisation errors occur. Therefore, the discretisation error on the finescale is estimated via a stress smoothing technique. The realtive error of stresses enables adaptive mesh refinement on the microscale leading to more accurate results also on the macroscale. The computational model is validated by comparison of the results to experimental data.Leaders: P. Wriggers, S. LöhnertTeam:Year: 2009
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FAILURE ANALYSIS - ERROR ESTIMATION FOR MULTISCALE METHODSThis project is concerned with the development of tools for error-estimation based adaptive multiscale failure analysis. In order to enable a more accurate mechanical analysis of composite aircraft substructures, existing discretisation error estimators will be improved to be used as indicators for mesh refinement. Additionally, physical error estimators will be developed to identify regions where higher-order material modelling is required.Leaders: P. WriggersTeam:Year: 2009
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ADAPTIVE MULTISCALE MODELING AND ANALYSIS OF HETEROGENEOUS MATERIALSAccurate computational analyses of a composite structure requires multiple levels of resolution: (i) a region where effective elastic properties are employed, (ii) a region where embedded micro-macro problems are solved, and (iii) a region where explicit microstructural evaluation is required. Development of such computational schemes for the adaptive multiscale analysis of heterogeneous materials is the main purpose of this project.Leaders: P. Wriggers, I. TemizerYear: 2009
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Crack propagation and crack coalescence in a multiscale frameworkIn this project a numerical framework for propagating and intersecting cracks on micro and macro scales is set up. Modeling cracks using the eXtended Finite Element Method (XFEM) provides an accurate and efficient numerical framework to model propagating and intersecting cracks. Since cracks of different length scales are assumed, a multiscale method is applied in order to be numerical efficient.Leaders: S. Löhnert, P. WriggersTeam:Year: 2010
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Multiscale Methods for Fracturing SolidsIn this project multiscale methods and homogenization techniques for the numerical simulation of three dimensional fracture processes are developed. These methods are important in aerospace and automotive industries and many other fields of mechanical and civil engineering as well as in bio-mechanics and material science. They will improve the prediction of the failure of structures.Leaders: P. Wriggers, S. LöhnertTeam:Year: 2011
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Computational multiscale modelling of localized ductile failureMany phenomenological material models capture ductile damage. However, to flexibly incorporate the underlying the governing microstructural properties and damage mechanisms, a multiscale framework is needed. The few recent numerical multiscale works on localized failure are limited to brittle microdamage. Therefore, the goal of this project is to provide a computational multiscale framework for the modelling of localized failure stemming from a microstructure undergoing ductile damage.Leaders: P. WriggersTeam:Year: 2012Sponsors: DFG im Normalverfahren
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Computational homogenisation of elasto plastic materialParticle-matrix materials are commonly used in different fields(aerospace components, bicycle frames and racing car bodies) for its mechanical and economical advantages,such as high strength, low weight and less expense.However,Because of the microstructural complexities,it is very time and labor consuming to determin the mechanical properties of composite materials. Hence,in order to reduce laboratory expense, numerical simulations via Homogenized techniques are performed on RVE to predict mechanical behavior of composite material.Leaders: P.WriggersTeam:Year: 2012
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Constitutive modeling of large deformation behavior of filled elastomersIn this work, a finite thickness cohesive zone model is used to study the large deformation & fracture behavior of filled elastomeric materials at the mesoscale. The study includes and has implications on filler cluster breakage, Mullins softening etc.Leaders: P.. WriggersTeam:Year: 2015
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Process Simulation for Selective Laser MeltingA phase change model for solution with the meshfree Galerkin OTM method is developed.Leaders: Christian Weißenfels, Peter WriggersTeam:Year: 2016
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Nanoindentation for material property characterizationIn this work, techniques are developed for nanoindentation of soft polymers and brittle powdery materials and measurement of properties like modulus, hardness and fracture toughness.Leaders: P. Wriggers, S. LöhnertTeam:Year: 2016
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Hypoplastic material models for soil-structure interaction problemsIn this work, a hypoplastic material model is implemented using AceGen with an eventual goal to model soil-structure interaction.Leaders: P. Wriggers, C. WeissenfelsTeam:Year: 2016
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Entropic approach to modeling Mullins effect in non-crystallizing filled elastomersThe work was done in collaboration with Mrs. Aarohi B. Shah and Dr. Julian J Rimoli of School of Aerospace Engineering, Georgia Tech, USA. In this work, we investigate non-crystallizing nanoparticle-reinforced polymers. The effects of the interface rubber between elastomeric matrix and filler particles and its alteration are investigated as a primary cause of Mullins and Payne effect.Leaders: P. Wriggers, J. J. RimoliTeam:Year: 2016
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In silico morphogenesis of collagen tissues for targeted drugs and bio-printingThis project targets to understand the mechanisms behind the morphogenesis and the development of living tissues. To this aim, mechanical and biological actions that contribute to confer tissue desired topology and functionality will be modelled and analysed in silico. A computational framework for the modeling of tissue morphogenesis in natural and bio-printed systems will be developed. In particular, the project will address: the multiscale hierarchical and organized arrangement of tissue constituents; the chemo-mechanical interaction among tissue constituents and among cells; the chemo-mechano-biological mechanisms driving growth and remodeling; the extrusion and the curing of multicellular aggregates blended with bio-inks. Obtained results will target to elucidate mechanisms behind tissue functional/dysfunctional structure; conceive targeted drug systems for stimulating optimal molecular pathways promoting tissue healing; develop novel or optimize existing 3D bio-printing technologies.Leaders: M. MarinoYear: 2017Sponsors: Masterplan SmartBiotecs, MWK (Lower Saxony, Germany)
Biomedical technology
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Numerical simulation and experimental validation of biofilm formationIn this Reserch , a state-of-the-art 3D computational model has been developed to investigate biofilms in a multi-physics framework using smoothed particle hydrodynamics (SPH) based on a continuum approach. Biofilms are in fact aggregation of microorganisms such as bacteria. Biofilm formation is a complex process in the sense that several physical phenomena are coupled and consequently different time-scales are involved. On one hand, biofilm growth is driven by biological reaction and nutrient diffusion and on the other hand, it is influenced by the fluid flow causing biofilm deformation and interface erosion in the context of fluid and deformable solid interaction (FSI). The geometrical and numerical complexity arising from these phenomena poses serious complications and challenges in grid-based techniques such as finite element (FE). Such issues are generally referred to as mesh distortion. Here the solution is based on SPH as one of the powerful meshless methods. SPH based computational modeling is quite new in the biological community and the method is uniquely robust in capturing the interface-related processes of biofilm formation especially erosion. The fact is that SPH is a versatile tool owing to its adaptive Lagrangian nature in the problems whose geometry is temporarily varying (dynamic). Moreover, its mesh-less feature is considered to be favorable in interpreting the method as a particle based one. Hence, it is quite straight forward to incorporate complex interactions and ad-hoc rules at the particle level into the method. This is the case for the problems with coupled governing equations with different time and length scale. In this thesis all different physics which account for biofilm formation have been implemented in the framework of SPH and one can say that this tool is purely SPH based. Besides the numerical simulation, experiments were conducted by our partners in the medical school of Hannover. The obtained numerical results show a good agreement with experimental and published data which demonstrates that the model is capable of predicting overall spatial and temporal evolution of the biofilms. The developed tool can be employed in either controlling the detrimental biofilms or harnessing the beneficial ones.Leaders: Peter WriggersTeam:Year: 2013
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Gekoppelte Simulation von Aerosolströmungen in asthmatischen BronchienDas Ziel dieses Projektvorhabens ist es, auf Basis eines gekoppelten 3D Mehrfeldmodells die partikelbeladene Luftströmung in gesunden sowie in asthmatisch verengten Bronchien anhand von numerischen Simulationen zu studieren.Leaders: P. Wriggers, B. AvciTeam:Year: 2014Sponsors: Leibniz Universität Hannover, Wege in die Forschung
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Advanced multiscale computational mechanics for physiopathological behavior analysis of tissues and organsThe physiological functionalities of large biological structures are highly affected by the mechanics of living tissues which is, in turn, related to microstructural arrangement of histological constituents and biochemical environment at nanoscale. Present research activity aims to develop a novel tissue multiscale description, including also inelastic mechanisms, coupled with an advanced computational formulation under finite strain and large-displacement assumptions. As a result, an innovative in-silico tool for simulation of organs and large biological structures will be developed, allowing to predict pathology-related damage or pharmacological-related healing and providing novel diagnostic and clinical indications for highly patient-specific medical treatments.Leaders: P. Wriggers, M. MarinoYear: 2015Sponsors: Alexander von Humboldt-Stiftung
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Patient-Specific FSI Analysis of the Blood Flow in the Thoracic AortaThe complexity of numerical modeling and simulation of blood flow in patient-specific thoracic aorta geometries leads to a number of major computational challenging issues. For instance, for an adequate simulation of the flow and pressure field, the incompressible Navier-Stokes equations have to be solved with the assumption that the relatively thin blood vessels suffer large displacements and undergo large elastic or visco-elastic deformations caused by the pulsatile blood flow. Subsequently, inaccurate predictions would be obtained for the hemodynamic quantities with the very simplifying rigid-wall assumption (CFD modeling). Moreover, when applying only the CFD modeling approach the essential phenomena of pressure wave propagation in cardiovascular systems are disregarded, however these phenomena are of major relevance for clinical practice. Accordingly, strongly coupled FSI schemes are inevitable for comprehensive blood flow simulations in arterial systems, and as blood and vascular walls have comparable densities, monolithic or at least partitioned strongly coupled FSI schemes are required for solving the multi-physics problem with its inherent significant added-mass effects.Leaders: P. Wriggers, B. AvciTeam:Year: 2016
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Computational modeling of in-stent restenosisThis project aims to develop a computational tool for the modeling of the long-term behaviour of stent deployment, with a special focus on both current and prospective approaches. A multiscale description of arterial constitutive behaviour will be employed, including possible damage due to the stenting procedure. Moreover, the chemo-biological mechanisms underlying the growth and remodelling due to wound healing in tissues will be introduced. Therefore, a multiphysics computational framework will be developed and applied for the analysis of both metal and drug-eluting stents. The project will allow to identify the dominant mechanisms driving in-stent restenosis, deciphering the role of the different molecular species in the pathological remodeling of arteries. The final target is to optimise the clinical outcome of current approaches and propose targeted therapeutic approaches.Leaders: M. MarinoYear: 2017Sponsors: Masterplan SmartBiotecs, MWK (Lower Saxony, Germany)
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Red blood cell simulation using a coupled shell-fluid analysis purely based on the SPH methodIf the rheological behavior of a Red-Blood-Cell (RBC) changes, for example due to some infection, it is reflected in its deformability when it passes through the microvessels. It can severely affect its proper function which is providing the oxygen and nutrient to the living cells. In this research project, a novel 3D numerical method has been developed to simulate RBCs based on the interaction between a shell-like solid structure and a fluid. RBC is assumed to be a thin shell encapsulating an internal fluid (Cytoplasm) which is submerged in an external fluid (blood plasma). The approach is entirely based on the smoothed particle hydrodynamics (SPH) method for both fluid and the shell structure. The method was motivated by the goal to benefit from the Lagrangian and meshless features of SPH in order to handle several complexities in the problem due to the coupling between the RBC membrane as a deformable elastic shell and interior/exterior fluids.Leaders: Peter WriggersTeam:Year: 2017Lifespan: 3 Jahre
High Performance Computing (HPC)
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In many cases, massive parallel large-scale computations are indispensable for solving problems of practical interest. The numerical treatment of such class problems requires not only highly efficient scalable parallel solvers, moreover, efficient parallel algorithms covering the whole simulation pipeline – also including pre- and post-processing, mesh generation and design solvers considering uncertainties – are essential to model and to simulate large-scale or exascale class problems. The specific goal of this project is therefore the development and implementation of new parallel algorithms and methods that will allow to solve large-scale class problems with high efficiency.Leaders: P. Wriggers, B. AvciTeam:Year: 2014Sponsors: FP7 of the EU
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ISPH-based Simulation of the Selective Laser Melting ProcessDevelopment of a thermo-mechanical model for the simulation of the SLM process.Leaders: Christian Weißenfels, Peter WriggersTeam:Year: 2017
Fracture Mechanics/ XFEM
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Crack propagation and crack coalescence in a multiscale frameworkIn this project a numerical framework for propagating and intersecting cracks on micro and macro scales is set up. Modeling cracks using the eXtended Finite Element Method (XFEM) provides an accurate and efficient numerical framework to model propagating and intersecting cracks. Since cracks of different length scales are assumed, a multiscale method is applied in order to be numerical efficient.Leaders: S. Löhnert, P. WriggersTeam:Year: 2010
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Large Deformation Cohesive-Zone Element for Fracture in Rubbery PolymersIn this work, a 3D cohesive zone element is developed considering material and geometric nonlinearities and suitable for modeling large deformations and rotations.Leaders: P. WriggersTeam:Year: 2015
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Nanoindentation for material property characterizationIn this work, techniques are developed for nanoindentation of soft polymers and brittle powdery materials and measurement of properties like modulus, hardness and fracture toughness.Leaders: P. Wriggers, S. LöhnertTeam:Year: 2016
Multiscale and multiphysics material modelling of polycrystalline metals and forming processes
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Creep deformation of nickel based superalloysModeling of nickel based superalloys on two scales using crystal plasticity and XFEM methods.Leaders: P. WriggersTeam:Year: 2018
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Modelling and simulation of the joining zone during the tailored forming process[Translate to Englisch:] The topic of project C4 is the multiphysical modelling and simulation of the microstructural behaviour of the joining zone during the tailored forming process. The goal is the determination of the macroscopic, effective, thermomechanical properties of joining zones during and after forming.The model will be able to capture the contact and diffusion processes during joining, the thermal and mechanical properties during forming as well as the material behaviour during heat treatment which is responsible for calibrating material properties.Leaders: F. Aldakheel, P. WriggersTeam:Year: 2019Sponsors: DFG im Rahmen des SFB 1153
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Water-induced damage mechanisms of cyclic loaded high-performance concretesThe use of offshore wind energy is expanding and fatigue-loaded concrete structures are built that are submerged in water. This currently already applies to so-called grouted joints, where high-strength fine-grained concrete (grout) is used in the steel support structures of offshore wind turbines. Such constructions are subjected to several hundred million load cycles within their service life. An increased water content in the concrete results from the offshore exposure which is principally different to onshore constructions,. Comparatively few investigations of fatigue-tested concrete specimens immersed in water are documented in the literature. Despite the fact, that considerably scatterings occur in these results a clear tendency can be observed. Specimens that are immersed in water have a significantly lower fatigue resistance compared with specimens tested in air. Some investigations also show that fatigue-loaded concrete specimens immersed in water have a significant change in their fracture behaviour compared with specimens tested in air. This can be seen, in tests, for example, by ascending air bubbles, wash-outs of fine particles and premature crack initiation.Water-induced damage mechanisms in fatigue-loaded concrete have indeed been recognised in the past, but they were not identified and described with sufficient precision. Consequently, they cannot be quantified reliably. Based on the existing knowledge gap, the vast majority of these mechanisms have currently escaped numerical modelling and simulation.The aim of this research project is to understand, analyse and quantify macroscopically water-induced damage mechanisms of fatigue-loaded high-performance concretes in the Experimental-Virtual-Lab (EVL) with complementary very latest state-of-the-art experimental methods. At the same time, models will be created and numerically implemented on a micromechanical basis that enables proving of hypotheses that will be derived from the experimental investigations. The structural data serve for the validation of these models; the data will be determined by µCT scans, NMR measurements and mercury intrusion porosimetry.After a first clarification of the origin of mechanisms by the EVL, modelling at the macroscopic level will be attempted on the basis of the micromechanical investigations. In this way it will be verified, how the water influences the degradation behaviour of fatigue-loaded high-performance concretes and which additional active, water-induced damage mechanisms are decisively involved in the degradation process. It will be possible for the first time to carry out a prediction of the degradation behaviour of fatigue-loaded high-performance concretes immersed in water based on microstructurally orientated parameters.Leaders: Fadi Aldakheel, Peter WriggersYear: 2020Sponsors: DFG SPP 2020, zweite FörderperiodeLifespan: 3 Jahre
Contact mechanics
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MULTISCALE CONTACT HOMOGENIZATION OF GRANULAR INTERFACESDry granular third bodies are frequently encountered at multiple scales of contact interfaces in contexts that range from mechanical problems of tire traction and semiconductor manufacturing to biological problems of wear debris generation and mobility in implant joints. The investigations that are envisaged within this proposal will provide further insight into the modeling and simulation of third body effects in a fully nonlinear three-dimensional virtual setting that accounts for inelastic phenomena.Leaders: P. Wriggers, I. TemizerTeam:Year: 2009
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Mutiscale FEM approach for rubber friction on rough surfacesUnderstanding the frictional behaviour of elastomers on rough surfaces is of high practical importance in many industrial applications. For example the traction of a tire is directly linked to the material properties of the considered elastomer and the surface conditions of the road track. One goal of our studies is to gain a deeper understanding of the underlying contact physics at all length scales. Another aim is to determine a macroscopic coefficient of friction for varying material and surface properties and to validate the results with experimental data.Leaders: P. WriggersTeam:Year: 2012
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Contact models for soil mechanicsThe installation of foundations influences strongly the load bearing capacity of the soil. The large discrepancy between experimental and numerical results, using Coulomb friction law for modeling the soil structure interaction, points out that new strategies to solve this kind of problems are necessary. Experimental observations show that for rough surfaces of the structure the friction angle at the contact zone corresponds to the friction angle of the soil. This leads to the conclusion that the contact zone lies completely within the soil. A way to improve the friction laws for soil structure interactions is to project the soil models onto the contact surface which is the motivation of this work. </a></p>Leaders: P. WriggersTeam:Year: 2012
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Application of the Virtual Element Method to Non-Conforming Contact InterfacesWhen using standard Finite Elements the discretization is subject to limitations depending on the element geometry. In contrast to this the Virtual Element Method offers the possibility for elements with an arbitrary number of nodes and special geometries like non-convex polygons or hanging nodes. In this Project the application of the Virtual Elements to different problems is investigated. Here it is used to create an efficient contact discretization.Leaders: P. WriggersTeam:Year: 2014
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Towards multiscale modeling of Abrasive wearThe work is motivated towards understanding wear as a multiscale-multiphysics approach. A 3D framework is developed to simulate cracks propagation in a microstructure due to contact loading to eventually predict wear trends in filled elastomeric compounds.Leaders: P. WriggersTeam:Year: 2015
Additive Manufacturing
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Process Simulation for Selective Laser MeltingA phase change model for solution with the meshfree Galerkin OTM method is developed.Leaders: Christian Weißenfels, Peter WriggersTeam:Year: 2016
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ISPH-based Simulation of the Selective Laser Melting ProcessDevelopment of a thermo-mechanical model for the simulation of the SLM process.Leaders: Christian Weißenfels, Peter WriggersTeam:Year: 2017
Discrete Elements and Molecular Dynamics
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Discrete Element MethodThis project is concerned with the development of a discrete element method (DEM) code for the simulation of large particle systems in 3-D, where also complex moving boundary geometries can be taken into account. The DEM is a well established numerical method to simulate systems consisting of granular matter. Granular mixing, tumbling mills, transport of particles via conveyor belts or screw conveyors are just some examples of important particulate processes in industry sectors like mining, pharmaceutical and food industries. For such systems, the optimization of the design variables as well as the appropriate choice of the operating parameters is still a difficult and a challenging task.Leaders: P. WriggersTeam:Year: 2011
Artificial Intelligence
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Using Machine Learning to Improve the Modelling of Machining and Cutting ProcessesMetal cutting is a fundamental process in industrial production. The fast and accurate on-line prediction of metal cutting processes is crucial for the Intelligent Manufacturing (IM). With the advent of high-speed computing, robust numerical algorithms and machine learning technology, computational modelling serves as a tool for not only accurate but also fast predicting the complex machining processes and understanding the complex physics. In this work, the machine learning based numerical model is developed for simulation of metal cutting processes.Leaders: C. Weißenfels, P. WriggersTeam:Year: 2018Sponsors: China Scholarship Council (CSC)
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Physics-Informed Data-Driven SimulationThis project investigates to what extent simulation with neural networks on the one hand and data-based empirical modeling on the other hand can be combined in a symbiotic manner. The ultimate goal is the generation of reliable models for complex dynamical systems known as digital twins.Leaders: H. Wessels, P. WriggersTeam:Year: 2020
Finite element technology
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Application of the Virtual Element Method to Non-Conforming Contact InterfacesWhen using standard Finite Elements the discretization is subject to limitations depending on the element geometry. In contrast to this the Virtual Element Method offers the possibility for elements with an arbitrary number of nodes and special geometries like non-convex polygons or hanging nodes. In this Project the application of the Virtual Elements to different problems is investigated. Here it is used to create an efficient contact discretization.Leaders: P. WriggersTeam:Year: 2014
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Large Deformation Cohesive-Zone Element for Fracture in Rubbery PolymersIn this work, a 3D cohesive zone element is developed considering material and geometric nonlinearities and suitable for modeling large deformations and rotations.Leaders: P. WriggersTeam:Year: 2015
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The stress and fatigue analysis of the transportation lineThe conveyor of the production line in Salzgitter Flachstahl GmbH which carries the steel coils is going to be subjected to an extra load due to the bigger coil size. The objective is to do a structural analysis of the conveyor to see if the safety factor of structure is still in the allowable region. Since, the loading condition is naturally variable due to continuously feeding the moving conveyor with steel coils, a fatigue analysis is required in addition to an ordinary static analysis.Leaders: Peter WriggersTeam:Year: 2018
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Publications
Book
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(2020): Virtual Design and Validation, Springer Nature
DOI: https://doi.org/10.1007/978-3-030-38156-1 -
(2018): Contact Modeling for Solids and Particles, Springer
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(2018): Multiscale Modeling of Heterogeneos Structures, Springer
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(2018): Biomedical Technology – Modeling, Experiments and Simulation, Springer
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(2017): Simulation von Selective Laser Melting Prozessen, In: R. Lachmayer, R. B. Lippert (Ed.) Additive Manufacturing Quantifiziert 145-162, Springer Vieweg, Berlin
DOI: 10.1007/978-3-662-54113-5
ISBN: 978-3-662-54112-8 -
(2017): Coupling microscale transport and tissue mechanics: modelling strategies for arterial multiphysics, In: S. Becker (Ed.), Microscale Transport Modelling In Biological Processes
DOI: 10.1016/B978-0-12-804595-4.00004-3 -
(2016): Automation of Finite Element Methods, Springer
ISBN: 978-3-319-39003-1 -
(2016): A Numerical Review of Multi-Fluid SPH Algorithms for High Density Ratios, Advances in Computational Fluid-Structure Interaction and Flow Simulation, Springer Verlag, Berlin. pp. 139-150.
ISBN: 978-3-319-40827-9 -
(2015): Development of Magnesium Alloy Scaffolds to Support Biological Myocardial Grafts - A Finite Element Investigation, in "Biomedical Technology" eds. T. Lenarz and P. Wriggers Lecture Notes in Applied and Computational Mechanics, Vol. 74, Springer Verlag, pp. 81-100
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(2014): Intelligent Decision Support System for River Floodplain Management, in Knowledge Based Software Engineering, Eds. A. Kravets, M. Shcherbakov, M. Kultsova and T. Iijima,, Communications in Computer and Information Science, Springer pp. 195-213, DOI: 10.1007/978-3-319-11854-3_18
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(2011): Homogenization of Granular Material modeled by a 3D DEM, Particle-Based Methods: Fundamentals and Applications, eds. E. Onate and D. R. J. Owen, pp. 211-231
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(2011): Elastomere Friction, LNACM Vol. 51, Springer, Berlin
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(2011): Identifikation eines Materialmodells für den DC04 basierend auf der numerischen Modellierung der polykristallinen Mikrostruktur und experimentellen Daten, In: M. Merklein, Fr.-W. Bach, A. E. Tekkaya (Hrg.) 1. Workshop Blechmassivumformung, S. 13-32, Meisenbach Bamberg. ISBN 978-3-87525-321-4.
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(2011): Modeling, Simulation and Software Concepts for Scientific-Technological Problems, LNACM Vol. 57, Springer, Berlin
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(2011): Trends in Computational Contact Mechanics, LNACM Vol. 58, Springer, Berlin
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(2011): New Trends in Thin Structures: Formulation, Optimization and Coupled Problems, CISM Course and Lecture Notes, vol 519, Springer, Wien
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(2010): Contact between Beams and Shells in "New Trends in Thin Structures: Formulation, Optimization and Coupled Problems", eds.: P. Pimenta and P. Wriggers, CISM Course and Lecture Notes, vol 519, pp. 155-174, Springer, Wien
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(2009): Mixed Finite Element Technologies. CISM Courses and Lectures, vol. 509., Springer, Wien.
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(2008): Nonlinear Finite Element Methods., Springer, Berlin.
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(2008): Computational Contact Mechanics. CISM Courses and Lectures, vol. 498., Springer, Wien.
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(2007): IUTAM Symposium on Computational Methods in Contact Mechanics. Proceedings of the IUTAM Symposium, Hannover, Nov. 5-8 2006., Springer, Dordrecht.
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(2006): A Guide for Engineers to Computational Contact Mechanics. The TCN Series on Simulation Based Engineering and Sciences, Vol. 1., Consorzio TCN, Trento, Italy.
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(2006): Computational Contact Mechanics. Second Edition., Springer, Berlin, Heidelberg.
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(2006): Analysis and Simulation of Contact Problems. Lecture Notes in Applied and Computational Mechanics, vol. 27., Springer, Heidelberg.
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(2005): Technische Mechanik kompakt: Starrkörperstatik, Elastostatik, Kinetik., Teubner.
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(2005): Introduction to Computational Micromechanics. Lecture Notes in Applied and Computational Mechanics, vol. 20., Springer, Berlin.
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(2003): Error-controlled Adaptive Finite Elements in Solid Mechanics., Wiley, Chichester.
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(2002): Computational Contact Mechanics., Wiley, Chichester.
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(2001): Nichtlineare Finite-Element-Methoden., Springer, Berlin.
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(1999): Technische Mechanik 4: Hydromechanik, Elemente der Höheren Mechanik, Numerische Methoden., Springer, Berlin.
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(1999): Formeln und Aufgaben zur Technischen Mechanik 3, Kinetik, Hydrodynamik., Springer, Berlin.
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(1999): New Developments in Contact Problems. CISM Courses and Lectures NO. 384., Springer, Wien, New York.
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(1998): Formeln und Aufgaben zur Technischen Mechanik 2, Elastostatik, Hydrostatik., Springer, Berlin.
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(1998): Formeln und Aufgaben zur Technischen Mechanik 1, Statik., Springer, Berlin.
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(1998): Finite Elemente in der Baupraxis, FEM 98., Ernst & Sohn.
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(1992): Finite Elemente in der Baupraxis.
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(1991): Nonlinear Computational Mechanics: State of the Art., Springer.
Article in journal
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(2021): A consistent peridynamic formulation for arbitrary particle distributions, Computer Methods in Applied Mechanics and Engineering
DOI: 10.1016/j.cma.2020.113605 -
(2020): Treatment of Brittle Fracture in Solids with the Virtual Element Method, Virtual Design and Validation
DOI: https://doi.org/10.1007/978-3-030-38156-1_11 -
(2020): Numerical method for solution of pointwise contact between surfaces, Computer Methods in Applied Mechanics and Engineering
DOI: https://doi.org/10.1016/j.cma.2020.112971 -
(2020): The analyses of dynamic response and reliability for failure-dependent stochastic micro-resonator with thermoelastic coupling effects, Applied Mathematical Modelling
DOI: https://doi.org/10.1016/j.apm.2019.09.040 -
(2020): Virtual Element Method for Cross-Wedge Rolling during Tailored Forming Processes, Procedia Manufacturing
DOI: https://doi.org/10.1016/j.promfg.2020.04.220 -
(2020): A global-local approach for hydraulic phase-field fracture in poroelastic media
arXiv: arXiv:2001.06055 -
(2020): Robust Contact and Friction Model for the Fatigue Estimate of a Wire Rope in the Mooring Line of a Floating Offshore Wind Turbine, Virtual Design and Validation
DOI: https://doi.org/10.1007/978-3-030-38156-1_13 -
(2020): Investigation of degraded bone substitutes made of magnesium alloy using scanning electron microscope and nanoindentation, Journal of the Mechanical Behavior of Biomedical Materials
DOI: 10.1016/j.jmbbm.2020.103825 -
(2020): A simulation model for the degradation of magnesium-based bone implants, Journal of the Mechanical Behavior of Biomedical Materials
DOI: 10.1016/j.jmbbm.2019.103411 -
(2020): The Neural Particle Method - An Updated Lagrangian Physics Informed Neural Network for Computational Fluid Dynamics, Computer Methods in Applied Mechanics and Engineering
DOI: https://doi.org/10.1016/j.cma.2020.113127
arXiv: https://arxiv.org/abs/2003.10208 -
(2020): Efficient modeling of filled rubber assuming stress-induced microscopic restructurization, International Journal of Engineering Science
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(2020): Free surface tension in incompressible smoothed particle hydrodynamcis (ISPH), Computational Mechanics
DOI: https://doi.org/10.1007/s00466-019-01780-6 -
(2020): Comparison of two pore sizes of LAE442 scaffolds and their effect on degradation and osseointegration behavior in the rabbit model, Journal of Biomedical Materials Research Part B: Applied Biomaterials
DOI: https://doi.org/10.1002/jbm.b.34607 -
(2020): Phase-field modeling of porous-ductile fracture in non-linear thermo-elasto-plastic solids, Computer Methods in Applied Mechanics and Engineering
DOI: https://doi.org/10.1016/j.cma.2019.112730 -
(2020): Magnesium Alloys for Open-Pored Bioresorbable Implants, JOM
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(2020): A novel stress-induced anisotropic growth model driven by nutrient diffusion: Theory, FEM implementation and applications in bio-mechanical problems, Journal of the Mechanics and Physics of Solids
DOI: 10.1016/j.jmps.2020.104097 -
(2020): An adaptive global-local approach for phase-field modeling of anisotropic brittle fracture, Computer Methods in Applied Mechanics and Engineering
DOI: https://doi.org/10.1016/j.cma.2019.112744 -
(2020): A Concept for the Extension of the Assumed Stress Finite Element Method to Hyperelasticity, Novel Finite Element Technologies for Solids and Structures
DOI: https://doi.org/10.1007/978-3-030-33520-5_4 -
(2020): Application of Enhanced Peridynamic Correspondence Formulation for Three-Dimensional Simulations at Large Strains, Virtual Design and Validation
DOI: https://doi.org/10.1007/978-3-030-38156-1_5 -
(2020): Discrete Element Methods: Basics and Applications in Engineering, Modeling in Engineering Using Innovative Numerical Methods for Solids and Fluids
DOI: https://doi.org/10.1007/978-3-030-37518-8_1 -
(2020): Water-induced damage mechanisms of cyclically loaded High-performance concretes, BAUINGENIEUR
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(2020): A Multiscale Projection Method for the Analysis of Fiber Microbuckling in Fiber Reinforced Composites, Virtual Design and Validation
DOI: https://doi.org/10.1007/978-3-030-38156-1_9 -
(2020): Peridynamic Petrov-Galerkin method: A generalization of the peridynamic theory of correspondence materials, Computer Methods in Applied Mechanics and Engineering, Volume 358
DOI: 10.1016/j.cma.2019.112636 -
(2020): Mixed peridynamic formulations for compressible and incompressible finite deformations, Computational Mechanics
DOI: 10.1007/s00466-020-01824-2 -
(2019): Generating virtual process maps of SLM using powder-scale SPH simulations, Computational Particle Mechanics
DOI: 10.1007/s40571-019-00296-3 -
(2019): Comparison of degradation behaviour and osseointegration of the two magnesium scaffolds, LAE442 and La2, in vivo, Materialia
DOI: 10.1016/j.mtla.2019.100436 -
(2019): Micro–macro constitutive modeling and finite element analytical-based formulations for fibrous materials: A multiscale structural approach for crimped fibers, Comput. Methods Appl. Mech. Engrg. 344:938-969
DOI: 10.1016/j.cma.2018.10.016 -
(2019): Direct and inverse identification of constitutive parameters from the structure of soft tissues. Part 2: dispersed arrangement of collagen fibers, Biomechanics and Modeling in Mechanobiology, in press,
DOI: 10.1007/s10237-019-01119-3 -
(2019): Processing and coating of open-pored absorbable magnesium-based bone implants, Materials Science & Engineering C 98 (2019) 1073-1086
DOI: 10.1016/j.msec.2018.12.125 -
(2019): Material models for the thermoplastic material behaviour of a dual-phase steel on a microscopic and a macroscopic length scale, Journal of the Mechanics and Physics of Solids
DOI: 10.1016/j.jmps.2019.04.012 -
(2018): Contact between spheres and general surfaces, Computer Methods in Applied Mechanics and Engineering
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(2018): Phase-field modeling of brittle fracture using an efficient virtual element scheme, Computer Methods in Applied Mechanics and Engineering
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(2018): Low order 3D virtual element formulation for finite elasto–plastic deformations, Computational Mechanics
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(2018): Nonlinear discontinuous Petrov-Galerkin methods, Numerische Mechanik
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(2018): Stabilization algorithm for the optimal transportation meshfree approximation scheme, Computer Methods in Applied Mechanics and Engineering
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(2018): Variational phase-field formulation of non-linear ductile fracture, Computer Methods in Applied Mechanics and Engineering
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(2018): A modified Gurson-type plasticity model at finite strains: formulation, numerical analysis and phase-field coupling, Computational Mechanics
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(2018): Metal particle fusion analysis for additive manufacturing using the stabilized optimal transportation meshfree method, Computer methods in applied mechanics and engineering
DOI: https://doi.org/10.1016/j.cma.2018.04.042 -
(2018): Investigation of Heat Source Modeling for Selective Laser Melting, Computational Mechanics
DOI: 10.1007/s00466-018-1631-4 -
(2018): De Lorenzis, L., Isogeometric frictionless contact analysis with the third medium method, Computational Mechanics
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(2018): Virtual element formulation for isotropic damage, Finite Element Analysis and Design
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(2018): Direct and inverse identification of constitutive parameters from the structure of soft tissues. Part 1: micro- and nanostructure of collagen fibers, Biomechanics and Modeling in Mechanobiology 17:1011-1036
DOI: 10.1007/s10237-018-1009-8 -
(2018): Red blood cell simulation using a coupled shell–fluid analysis purely based on the SPH method, Biomechanics and modeling in mechanobiology
DOI: 10.1007/s10237-018-1085-9 -
(2018): Multiscale finite element analysis of uncertain-but-bounded heterogeneous materials at finite deformation, Finite Elements in Analysis and Design
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(2018): 3D ductile crack propagation within a polycrystalline microstructure using XFEM, Computational Mechanics
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(2018): Delamination onset and growth in composite shells, Computers & Structures
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(2018): An advanced abrasion model for tire wear, Wear
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(2018): A Virtual Element Method for 2D linear elastic fracture analysis., Computer Methods in Applied Mechanics and Engineering, Volume 340, 1 October 2018, Pages 366-395
DOI: https://doi.org/10.1016/j.cma.2018.05.021 -
(2017): Isogeometric symmetric Galerkin boundary element method for three-dimensional elasticity problems, Computer Methods in Applied Mechanics and Engineering
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(2017): A chemo-mechano-biological formulation for the effects of biochemical alterations on arterial mechanics: the role of molecular transport and multiscale tissue remodelling, Journal of the Royal Society Interface 14:20170615
DOI: 10.1098/rsif.2017.0615 -
(2017): Finite strain response of crimped fibers under uniaxial traction: an analytical approach applied to collagen, Journal of the Mechanics and Physics of Solids 98:429-453
DOI: 10.1016/j.jmps.2016.05.010 -
(2017): Numerical multiscale modelling and experimental validation of low speed rubber friction on rough road surfaces including hysteretic and adhesive effects, Tribology International, Volume 111, pp. 243–253
DOI: 10.1016/j.triboint.2017.03.015 -
(2017): A low order virtual element formulation for finite elasto-plastic deformations, Computer Methods in Applied Mechanics and Engineering
DOI: 10.1016/j.cma.2017.08.053 -
(2017): Efficient virtual element formulations for compressible and incompressible finite deformations, Computational Mechanics (2017) 60:253–268
DOI: 10.1007/s00466-017-1405-4 -
(2017): An EBSD Evaluation of the Microstructure of Crept Nimonic 101 for the Validation of a Polycrystal–Plasticity Model, Journal of Materials Engineering and Performance
DOI: https://doi.org/10.1007/s11665-017-3046-3 -
(2017): 3D ductile crack propagation within a polycrystalline microstructure using XFEM , Computational Mechanics
DOI: 10.1007/s00466-017-1427-y -
(2016): Mesoscale constitutive modeling of non-crystallizing filled elastomers, Computational Mechanics, Vol. 57(4), pp. 653-677 | File |
DOI: 10.1007/s00466-015-1251-1 -
(2016): Computational and theoretical aspects of a grain-boundary model that accounts for grain misorientation and grain-boundary orientation, Computational Materials Science, vol. 111, pp. 443-459
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(2016): Meshless analysis of shear deformable shells: boundary and interface constraints, Computational Mechanics, vol. 57, pp. 679-700
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(2016): A novel mixed finite element for finite anisotropic elasticity; the SKA-element Simplified Kinematics for Anisotropy, Computer Methods in Applied Mechanics and Engineering, vol. 310, pp. 475-494
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(2016): Node-to-segment and node-to-surface interface finite elements for fracture mechanics, Computer Methods in Applied Mechanics and Engineering, vol. 300, pp. 540-560
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(2016): Numerical simulation and experimental validation of biofilm in a multi-physics framework using an SPH based method
DOI: 10.1007/s00466-016-1308-9 -
(2016): An adaptive model order reduction by proper snapshot selection for nonlinear dynamical problems, Computational Mechanics, vol. 57, pp. 537-554
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(2016): Modelle in der Strukturmechanik, Bauingenieur, vol. 91, pp. 330-334
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(2016): A virtual element method for contact , Computational Mechanics (2016) 58: 1039-1050
DOI: 10.1007/s00466-016-1331-x -
(2016): Delamination growth in composite laminates of variable stiffness, International Journal for Numerical Methods in Engineering
DOI: 10.1002/nme.5264 -
(2016): An XFEM approach for modelling delamination in composite laminates, Composite Structures
DOI: 10.1016/j.compstruct.2015.09.035 -
(2016): Finite element formulations for large strain anisotropic materials, International Journal on Advanced Modelling and Simulation in Engineering Sciences, (accepted)
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(2015): Methods to project plasticity models onto the contact surface applied to soil structure interactions, Computers and Geotechnics 65 (2015) 187–198 | File |
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(2015): Degradation behaviour of LAE442-based plate–screw-systems in an in vitro bone model, Materials Science and Engineering, Vol. 49, pp. 305-315
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(2015): Multiscale hierarchical mechanics in soft tissues, Proceedings in Applied Mathematics and Mechanics 15:35-38
DOI: 10.1002/pamm.201510010 -
(2015): Multiscale FEM approach for hysteresis friction of rubber on rough surfaces, Computer Methods in Applied Mechanics and Engineering, Volume 296, pp. 150-168, DOI: 10.1016/j.cma.2015.08.003
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(2015): 3D Ductile crack propagation with the XFEM, Proceedings in Applied Mathematics and Mechanics, vol 15, pp. 747-748
DOI: 10.1002/pamm.201510354 -
(2014): A multi-scale computational method including contact for the analysis of damage in composite materials, Computational Material Science, 95, pp.522-535, DOI: 10.1016/j.commatsci.2014.08.004
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(2014): Random homogenization analysis for heterogeneous materials with full randomness and correlation in microstructure based on finite element method and Monte-carlo method, Computational Mechanics, 54 pp. 1395-1414, DOI: 10.1007/s00466-014-1065-6
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(2014): Stochastic homogenized effective properties of three-dimensional composite material with full randomness and correlation in the microstructure, Computers & Structures, 144 pp. 62-74, DOI: 10.1016/j.compstruc.2014.06.003
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(2014): Isogeometric contact: a review, GAMM‐Mitteilungen, 37 (1), pp. 85-123, DOI: 10.1002/gamm.201410005
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(2014): Geometric adaption of biodegradable magnesium alloy scaffolds to stabilise biological myocardial grafts. Part I, Journal of Materials Science: Materials in Medicine, Volume 25, Issue 3, Page 909-916, DOI 10.1007/s10856-013-5100-5
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(2014): 3D multiscale crack propagation using the XFEM applied to a gas turbine blade, Computational Mechanics; Vol. 53; Issue 1; pages 173-188; DOI: 10.1007/s00466-013-0900-5
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(2014): Isogeometric large deformation frictionless contact using T-splines, 213. Computer Methods in Applied Mechanics and Engineering, Volume 269, pp. 394-414, DOI: 10.1016/j.cma.2013.11.002
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(2014): Polygonal finite element methods for contact-impact problems on non-conformal meshes, Computer Methods in Applied Mechanics and Engineering, Volume 269, pp. 198-221, DOI: 10.1016/j.cma.2013.10.025
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(2014): Multiscale Hydro-Thermo-Chemo-Mechanical Coupling: Application to Alkali-Silica Reaction, Journal of Computational Material Science, Vol 84, 381-395.
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(2013): Texture development and formability prediction for pre-textured cold rolled body-centred cubic steel, Int. J. Eng. Sci., 68: 24-37
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(2013): Approximation of incompressible large deformation elastic problems: some unresolved issues, Computational Mechanics, DOI: 10.1007/s00466-013-0869-0
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(2013): On the Optimality of the Window Method in Computational Homogenization , International Journal of Engineering Science, Vol. 64; page 66-73.
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(2013): Computational homogenization of rubber friction on rough rigid surfaces, Computational Materials Science, Vol. 77, pages 264-280
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(2013): An adaptive multiscale method for crack propagation and crack coalescence, International Journal for Numerical Methods in Engineering; Vol. 93; Issue 1; pages 23-51; DOI: 10.1002/nme.4373
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(2013): A numerical investigation of the interplay between cohesive cracking and plasticity in polycrystalline materials, Computational Materials Science, 77: 81-92
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(2013): A finite element method for contact using a third medium, Computational Mechanics, Vol. 52, pages 837-847
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(2013): Finite Element Study of Degradable Intramedullary Nails out of Magnesium Alloy for Ovine Tibiae, Biomedical Engineering/Biomedizinische Technik
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(2013): New simple, cheap and efficient explicit error estimator for adaptive finite element analysis in elasticity and fracture, submitted to IJNME
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(2013): Computational Thermal Homogenization of Concrete, Journal of Cement and Concrete Composites, Vol 35(1), 59-70.
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(2012): A DEM-FEM coupling approach for the direct numerical simulation of 3D particulate flows, Journal of Applied Mechanics, Vol. 79, 010901-(1-7).
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(2012): Error estimation for crack simulations using the XFEM., International Journal for Numerical Methods in Engineering, vol 91, pp. 1459 - 1474
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(2012): A two-scale model of granular materials, Computer Methods in Applied Mechanics and Engineering, Vol. 205-208, 46-58.
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(2012): Crack face contact for a hexahedral-based XFEM formulation, Computational Mechanics, vol 49, pp. 725-734
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(2012): Material model identification for DC04 based on the numerical modelling of the polycrystalline microstructure and experimental data., Key Eng. Mater., 504-506: 993-998
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(2012): Computational Homogenisation of Polycrystalline Elastoplastic Microstructures at Finite Deformation, Technische Mechanik, 32 (2-5): 369-379
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(2012): About the Microstructural Effects of Polycrystalline Materials and their Macroscopic Representation at Finite Deformation, Proc. Appl. Math. Mech., 12 (1): 275-276
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(2012): Three-Dimensional Mortar-Based Frictional Contact Treatment in Isogeometric Analysis with NURBS, Computer Methods in Applied Mechanics and Engineering, v.209-212 p.115-128.
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(2012): Error Controlled Adaptive Multiscale XFEM Simulation of Cracks, International Journal of Fracture, vol 178, pp. 147-156
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(2011): Towards the Effective Behaviour of Polycrystalline Materials for Sheet Bulk Metal Forming Processes, AIP Conf. Proc., 1353: 1179-1184
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(2011): Computational Homogenisation of Polycrystalline Elastoplastic Microstructures at Finite Deformation, Proc. Appl. Math. Mech., 11 (1): 401-402
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(2011): Homogenization in Finite Thermoelasticity, Journal of the Mechanics and Physics of Solids, v.59 p.344–372.
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(2011): Contact Treatment in Isogeometric Analysis with NURBS, Computer Methods in Applied Mechanics and Engineering, 200 pp. 1100-1112
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(2011): Random homogenization analysis in linear elasticity based on analytical bounds, International Journal of Solids and Structures, 48 pp 280-291
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(2011): Dynamic optimization design of fuzzy-random truss structures based on the general dynamic reliability, Computational Mechanics
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(2011): Structural dynamic optimal design based on the dynamic reliability, Engineering Structures 33 (2)
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(2011): A new Mixed Finite Element based on Different Approximations of the Minors of Deformation Tensors, Computer Methods in Applied Mechanics and Engineering, 200:3583-3600
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(2011): A large deformation frictional contact formulation using NURBS-based isogeometric analysis, International Journal for Numerical Methods in Engineering, 87 pp 1278-1300
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(2011): Isogeometric analysis of 3D large deformation contact problems with the augmented Lagrangian formulation, Computational Mechancis, DOI 10.1007/s00466-011-0623-4
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(2011): „A nonlocal cohesive zone model for finite thickness interfaces – Part I: Mathematical formulations and validation with molecular dynamics, Computational Material Science pp 1625-1633(2011)
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(2011): A nonlocal cohesive zone model for finite thickness interfaces – Part II: FE Implementation and application to polycristalline materials, Computational Material Science pp 1634-1643
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(2011): 3D corrected XFEM approach and extension to finite deformation theory, International Journal for Numerical Methods in Engineering, vol 86, pp. 431 - 452
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(2010): Numerical modeling of electrical contacts, Computational Mechanics, 46, pp. 301-314
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(2010): Modelling Metals at Finite Deformation, Proc. Appl. Math. Mech., 10 (1): 305-306
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(2010): Inelastic analysis of granular interfaces via computational contact homogenization, International Journal for Numerical Methods in Engineering, 84 pp. 883-915
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(2010): A micromechanically motivated higher-order continuum formulation of linear thermal conduction, ZAMM, 90 pp. 768-782
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(2010): Thermal contact conductance characterization via computational contact homogenization: A finite deformation theory framework, International Journal for Numerical Methods in Engineering, 83 pp. 24-58
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(2010): An Adaptive Multiscale Resolution Strategy for the Finite Deformation Analysis of Microheterogeneous Structures, Comput. Methods Appl. Mech. Engrg. v.200 p.2639-2661
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(2010): An improved EAS brick element for finite deformation, Computational Mechanics, 46, pp. 641-650
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(2010): The analyses of dynamic response and reliability of fuzzy-random truss under stationary stochastic excitation, Computational Mechanics, 45 pp. 443-455
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(2009): Finite-element transient calculation of a bell struck by a clapper, Concepts, Experiments, and Fieldwork: Studies in Systematic Musicology and Ethnomusicology, Peter Lang, December 2009
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(2009): A finite deformation brick element with inhomogeneous mode enhancement, International Journal for Numerical Methods in Engineering, vol 78, pp. 1164 - 1187
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(2009): Schwingungsreduktion einer Pontonanlage in Bremerhaven, Bauingenieur
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(2009): Multi-scale Approach for Frictional Contact of Elastomers on Rough Rigid Surfaces., Computer Methods in Applied Mechanics and Engineering, 198:1996-2008
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(2009): Formulation and analysis of a 3D finite element implementation for adhesive contact at the nanoscale,, Comp. Meth. Appl. Mech. Engrg., DOI: 10.1016/j.cma.2009.08.019
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(2009): Study on Contact Characteristic of Nanoscale Asperities by Using Molecular Dynamic Simulations., Journal of Tribology, 131:022001-1-022001-10
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(2008): Finite element analysis of enlarged end piles using frictional contact., Solids and Foundations, 48:1-14
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(2008): A macro-element for incompressible finite deformations based on a volume averaged deformation gradient., Computational Mechanics, 42:407-416
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(2008): A Multiscale Contact Homogenization Technique for the Modeling of Third Bodies in the Contact Interface, Computer Methods in Applied Mechanics and Engineering, 198:377-396 | File |
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(2008): On the numerical homogenization of hardened cement paste, Computational Mechanics, 42, pp. 197-212
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(2008): Computational Homogenization of micro-structural Damage due to Frost in Hardened Cement Paste., Finite Elements in Analysis and Design, 44:223-244
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(2008): Special issue: Challenges in computationalmechanics, Computational Mechanics, 42 pp. 145-146
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(2008): An exact conserving algorithm for nonlinear dynamics with rotational DOFs and general hyperelasticity. Part 1: Rods., Computational Mechanics, 42:715-732
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(2008): A formulation for frictionless contact problems using a weak form introduced by Nitsche., Computational Mechanics, 41:407-420
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(2008): Effective Behaviour of Elastic Heterogeneous Thin Structures at Finite Deformations, Computational Mechanics, 41, pp. 595 - 606
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(2008): Intelligent support of the processing stage of engineering analysis using case-based reasoning., Engineering with Computers, 24:384-404
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(2007): Advection Approaches for single- and multi-level materials: Arbitrary Lagrangian-Eulerian finite element procedures., Computational Mechanics, 39:153-190
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(2007): Application of Frictional Contact in Geotechnical Engineering., International Journal of Geomechanics, :176-185
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(2007): A new finite element based on the theory of a Cosserat point - extension to initially distorted elements for 2D plane strain., Int. J. Numer. Meth. Engng., 71, 454 - 472
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(2007): A new finite element based on the theory of a Cosserat point - extension to initially distorted elements for 2D plane strain., International Journal for Numerical Methods in Engineering, 71:454-472
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(2007): Elastic-plastic analysis of metallic shells at finite strains., Rem-Revista Escola de Minas, 60:381-389
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(2007): An adaptive method for homogenization in orthotropic nonlinear elasticity, Computer Methods in Applied Mechanics and Engineering, 196:3409-3423 | File |
-
(2007): An interior-point algorithm for elastoplasticity., International Journal for Numerical Methods in Engineering, 69:592-626
-
(2007): Frostschädigung von Zementstein., Bauingenieur, 82:479-486
-
(2007): Intelligent support of engineering analysis using ontology and case-based reasoning., Engineering Application of Artificial Intelligence, 20:709-720
-
(2006): Improved numerical algortihms for frictional contact in pile penetration analysis., Computers and Geotechnics, 33:341-354
-
(2006): Mortar based frictional contact formulation for higher order interpolations using the moving friction cone., Computer Methods in Applied Mechanics and Engineering, 195:5020-5036
-
(2006): Beam and Shell Elements for Thin-walled Aluminium Structures., Foundations of Civil and Environmental Engineering, 7:397-412
-
(2006): Mesoscale models for concrete: Homogenization and damage behaviour., Finite Element Analysis and Design, 42:623-636
-
(2005): On practical integration of semi-discretized nonlinear equations of motion. Part 1: Reasons for probable instability and improper convergence, Journal of Sound and Vibration, 284, pp. 705-731
-
(2005): A 3D beam-to-beam contact finite element for coupled electric-mechanical fields., International Journal for Numerical Methods in Engineering, 64:1800-1815
-
(2005): Finite element analysis of pile installation using large-slip frictional contact., Computers and Geotechnics, 32:17-26
-
(2005): A finite element model for contact analysis of multiple Cosserat bodies., Computational Mechanics, 36:444-458
-
(2005): Frictionless 2D Contact formulations for finite deformations based on the mortar method., Computational Mechanics, 36:226-244
-
(2005): Thermomechanical behaviour of rubber materials during vulcanization., International Journal of Solids & Structures, 42:4758-4778
-
(2005): Mikrostruktursimulation von Zementstein., Bauingenieur, 80:313-319
-
(2005): Buchbesprechung: Kontinuums- und Kontaktmechanik von K. Willner., Technische Mechanik
-
(2005): Response of a nonlinear elastic general Cosserat brick element in simulations typically exhibiting locking and hourglassing., Computational Mechanics, 36:255-265
-
(2005): Development of a wrinkling algorithm for orthotropic membrane materials., Computer Methods in Applied Mechanics and Engineering, 194:2550-2568
-
(2004): Adaptive methods for thermo-mechanical contact problems., International Journal for Numerical Methods in Engineering, 58:871-894
-
(2004): Homogenization methods leading to interface laws of contact mechanics, International Journal for Numerical Methods in Engineering, 59, pp. 173-195
-
(2004): Homogenization methods leading to interface laws of contact mechanics., International Journal for Numerical Methods in Engineering, 59:173-195
-
(2004): On the design of energy-momentum integration schemes for arbitrary continuum formulations. Applications to classical and chaotic motion of shells., International Journal for Numerical Methods in Engineering, 60:2419-2440
-
(2004): Wear simulation based on node-to-segment element., Key Engineering Materials, 274-276:577-582
-
(2004): A new algorithm for numerical solution of 3d elastoplastic contact problems with orthotropic friction law., Computational Mechanics, 34:1-14
-
(2004): Frictional contact of elastomer materials on rough rigid surfaces., PAMM, 4:360-361
-
(2004): Consistent Coupling of Beam and Shell Models for Thermo-elastic Analysis., International Journal for Numerical Methods in Engineering, 59:1861-1878
-
(2004): A fully nonlinear multi-parameter shell model with thickness variation and a triangular shell finite element formulation., Computational Mechanics, 34:181-193
-
(2004): Book Review: S. Mohammadi, Discontinuum Mechanics using Finite and Discrete Elements., ZAMM, 84:774
-
(2004): Computational Contact Mechanics, Encyclopedia of Computational Mechanics, eds. E. Stein, R. de Borst and T. J. R. Hughes, Wiley, Chichester
-
(2004): The moving friction cone approach for three dimensional contact simulations, Journal of Computational Methods 1 pp.115-119
-
(2004): Multi-Skalen Methoden und Modelladaptivität bei der Berechnung von komplexen Strukturen., Bauingenieur, :497-505
-
(2004): The Moving Friction Cone approach for three-dimensional contact simulations., International Journal of Computational Methods, 1:105-119
-
(2003): Comparison of Different Error Indicators for Contact Problems Involving Large Elastic Strains., Applicable Analysis, 82:575-601
-
(2003): A practical upper-bound on errors associated with Richardson extrapolation and its application in time integration analysis., comstr
-
(2003): A finite element post-processed Galerkin method for dimensional reduction in the nonlinear dynamics of solids. Applications to shells., Computational Mechanics, 32:104-114
-
(2003): A triangular finte shell element based on a fully nonlinear shell formulation., Computational Mechanics, 31:505-518
-
(2003): Comparison of the Critical Displacement Method and the Extended System for critical point computations, EngineeringComputation, 5/6, pp. 611-628
-
(2003): Direct Computation of instability points with inequality constraints using FEM., Engineering Computation, 5/6:611-628
-
(2003): Direct computation of instability points for contact problems., Computational Mechanics, 31:173-178
-
(2003): Interaction between different internal length scales for strain localization analysis of single phase materials., Computational Mechanics, 30:212-219
-
(2003): Auto-adaptive composite structures with self-actuating SMA-HPFRCC fuses., International Journal of Computer-Aided Civil and Infrastructural Engineering, 18:78-94
-
(2003): A simple formulation for two-dimensional contact problems using a moving friction cone., Communications in Numerical Methods in Engineering, 19:285-295
-
(2003): Homogenization of micro-heterogeneous materials considering interfacial delamination at finite strains., Technische Mechanik, 23:167-177
-
(2003): Analysis wrinkling states in membranes.
-
(2002): On the error indication of shells in unilateral fricionless contact., Computational Mechanics, 28:169-176
-
(2002): An energy-momentum integration scheme and enhanced strain finite elements for the non-linear dynamics of shells., Non-Linear Mechanics, 37:951-966
-
(2002): On the adaptive finite element method of steady-state rolling contact for hyperelasticity in finite deformations., Computer Methods in Applied Mechanics and Engineering, 191:1333-1348
-
(2002): A C1-continuous formulation for 3D finite deformation frictional contact., Computational Mechanics, 29:27-42
-
(2002): Contact between 3D-beams with rectangular cross section., International Journal for Numerical Methods in Engineering, 53:2019-2042
-
(2002): Frictional Contact between 3D-beams with rectangular cross section., Computational Mechanics, 28:26-39
-
(2002): Rechnergestütztes Materialdesign., Braunschweigisch Wissenschaftliche Gesellschaft, Jahrbuch 2001, :61-64
-
(2001): A strategy for numerical testing of frictional laws with application to contact between soil and concrete., Computer Methods in Applied Mechanics and Engineering, 190:963-978
-
(2001): Adaptive methods for frictionless contact problems., Computers and Structures, 79:2197-2208
-
(2001): Combination of the critical displacement method with a damage model for structural instability analysis., Engineering Computation, 18:642-662
-
(2001): Rolling contact simulations with frictional contact elements using Lagrangian description., Zeitschrift für angewandte Mathematik und Mechanik, 81:S397-S398
-
(2001): Smooth C1- interpolations for two-dimensional frictional contact problems., International Journal for Numerical Methods in Engineering, 51:1469-1495
-
(2001): Comparative crash simulations incorporating the results of sheet forming analyses., Engineering Computations, 18:744-758
-
(2001): Computational micro-macro material testing., Archives of Computational Methods in Engineering, 8:131-228
-
(2001): Aspects of the computational testing of the mechanical properties of microheterogeneous material samples., International Journal for Numerical Methods in Engineering, 50:2573-2599
-
(2001): Modeling and simulating of the decohesion of particulate aggregates in a binding matrix., Engineering Computations, 18:79-95
-
(2001): A consistent Petrov-Galerkin transformation that eliminates spurious oscillations for heterogeneous diffusion-reaction equations., Computational Material Science
-
(2001): A model for simulating the detioration of structural-scale material responses of microheterogeneous solids., Computer Methods in Applied Mechanics and Engineering, 190:2803-2824
-
(2001): A method of substructuring large-scale computational micromechanical problems., Computer Methods in Applied Mechanics and Engineering, 190:5639-5656
-
(2000): Contact with friction between beams in 3-D space., International Journal for Numerical Methods in Engineering, 49:977-1006
-
(2000): Arbitrary Lagrangian Eulerian finite element analysis of free surface flows., Computer Methods in Applied Mechanics and Engineering, 190:95-110
-
(2000): Adaptive Finite Element Analysis of Fractal Interfaces in Contact Problems., Computer Methods in Applied Mechanics and Engineering, 182:17-38
-
(2000): Comparison of different error measures for adaptive finite element techniques applied to contact problems involving large elastic strains., Computer Methods in Applied Mechanics and Engineering
-
(2000): On Smooth Finite Element Discretization for Frictional Contact Problems., Zeitschrift für angewandte Mathematik und Mechanik, 80,S1:77-80
-
(2000): A new stabilization concept for finite elements in large deformation problems., International Journal for Numerical Methods in Engineering, 48:79-110
-
(2000): A new locking-free brick element technique for large deformation problems in elasticity., Computers and Structures, 75:291-304
-
(2000): Phenomenological modeling and numerical simulation of the environmental degradation of multiphase engineering materials., Archive of Applied Mechanics, 70:47-64
-
(2000): A computational model for interfacial damage through microstructural cohesive zone relaxation., The International Journal of Fracture, 101:L9-L14
-
(2000): On the sensitivity of homogenized material responses at infinitesimal and finite strains., Communications in Numerical Methods in Engineering, 16:657-670
-
(1999): Adaptive finite elements for elastic bodies in contact., SIAM Journal of Scientific Computing, 20:1605-1626
-
(1999): A superlinear convergent augmented Lagrangian procedure for contact problems., Engineering Computations, 16:88-119
-
(1999): Finite Element Concepts for Finite Elastoplastic Strains and Isotropic Stress Response in Shells: Theoretical and Computational Analysis., Computer Methods in Applied Mechanics and Engineering, 171:243-279
-
(1999): A technique to describe the macroscopic pressure dependence of diffusive properties of solid materials containing heterogeneities., Computational Materials Science, 15:69-88
-
(1999): On the effects of microstress on macroscopic diffusion processes., Acta Mechanica, 136:91-107
-
(1999): Microstructural decomposition error estimates., Zeitschrift für angewandte Mathematik und Mechanik, 79:155-158
-
(1999): A domain decomposition method for bodies with heterogeneous microstructure based on material regularization., International Journal of Solids & Structures, 136:2507-2527
-
(1998): A simple local a posteriori bending indicator for axisymmetrical membrane and bending shell elements., Engineering Computations, 15:977-988
-
(1998): A segment-to-segment contact strategy., Mathematics and Computer Modelling, 28:497-515
-
(1998): A method for solving contact problems., International Journal for Numerical Methods in Engineering, 42:473-498
-
(1998): A parallel algebraic multigrid solver for problems in solid mechanics discretized by finite elements., Computers and Structures, 69:129-137
-
(1998): A computational study of interfacial debonding damage in fibrous composites materials., Computational Materials Science, 12:39-56
-
(1998): Different a posteriori error estimators and indicators for contact problems., Mathematics and Computer Modelling, 28:437-447
-
(1998): Adaptive finite element techniques for frictional contact problems involving large elastic strains., Computer Methods in Applied Mechanics and Engineering, 151:593-603
-
(1998): On the Calculation of Finite Plastic Strains in Shell Intersections with Finite Elements., Technische Mechanik, 18:181-188
-
(1998): Eine neue Stabilisierungstechnik fur finite Elemente in der finiten Elastizitat., Zeitschrift für angewandte Mathematik und Mechanik, 78
-
(1998): Thermoviscoelastic material behaviour at finite deformations with temperature-dependent material parameters., Zeitschrift für angewandte Mathematik und Mechanik, 78
-
(1998): A description of macroscopic damage through microstructural relaxation., International Journal for Numerical Methods in Engineering, 143:493-506
-
(1997): An algebraic multigrid solver for finite element computations in solid mechanics., Engineering Computations, 14:202-215
-
(1997): Shape optimization of a lubricated journal bearing with regard to the distribution of pressure in the fluid., Engineering Optimization, 29:259-275
-
(1997): On the Symmetric boundary element method and the symmetric coupling of boundary elements and finite elements., IMA J. Num. Analysis, 17:201-238
-
(1997): Nonlinear Dynamics of Shells: Theory, Finite Element Formulation and Integration Schemes., Nonlinear Dynamics, 13:279-305
-
(1997): A finite element method for plane stress problems with large elasto-plastic deformations., Communications in Applied Numerical Methods, 13:963-976
-
(1997): On contact between three-dimensional beams undergoing large deflections., Communications in Applied Numerical Methods, 13:429-438
-
(1997): Application of a parallel algebraic multigrid method for the solution of elasto-plastic shell problems., Numerical Linear Algebra with Application, 4:223-238
-
(1997): Material Instabilities of an Incompressible Elastic Cube under Triaxial Tension., International Journal of Solids & Structures, 34:3433-3454
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(1997): A material model for rubber-like polymers exhibiting plastic deformation: computational aspects and a comparison with experimental results., Computer Methods in Applied Mechanics and Engineering, 148:279-298
-
(1996): Numerical Simulation of Rapid Crack Propagation in Viscoplastic Materials., Computers and Structures, 61:1169-1175
-
(1996): A Finite Element Approach to the Chaotic Motion of Geometrically Exact Rods undergoing Plane Deformations., Nonlinear Dynamics, 11:189-212
-
(1996): On the Efficiency of New and Old Strategies for Solving Contact Problems., Zeitschrift für angewandte Mathematik und Mechanik, 76:563-564
-
(1996): Large strain analysis of soft biological and rubber-like membranes: Formulation and finite element analysis., Computer Methods in Applied Mechanics and Engineering, 132:45-61
-
(1996): A new axisymmetrical membrane element for anisotropic, finite strain analysis of arteries., Communications in Applied Numerical Methods, 12:507-517
-
(1996): Consistent gradient formulation for a stable enhanced strain method for large deformations., Engineering Computations, 13:103-123
-
(1996): Improved enhanced strain 3-D element with Taylor expansion of shape functions., Computational Mechanics, 19:30-40
-
(1996): On Finite Element Methods for Contact Problems with Friction., Tribology International, 29:651-658
-
(1996): On enhanced strain methods for small and finite deformations of solids., Computational Mechanics, 18:413-428
-
(1996): Comparison between Shell and 3D-Elements in Finite Plasticity., International Journal of Solids & Structures, 33:3309-3326
-
(1996): A note on enhanced strain methods for large deformations., Computer Methods in Applied Mechanics and Engineering, 135:201-209
-
(1996): A Formulation of the Enhanced QS6-Element for Large Elastic Deformations., International Journal for Numerical Methods in Engineering, 39:3039-3053
-
(1996): Finite element calculation of the stability behaviour of hyperelastic solids with the enhanced strain method., Zeitschrift für angewandte Mathematik und Mechanik, 76:415-416
-
(1995): On Augmented Lagrangian Algorithms for Thermomechanical Contact Problems with Friction., International Journal for Numerical Methods in Engineering, 38:2929-2949
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(1995): The consistent strain method in finite element plasticity., Computers and Structures, 54:27-33
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(1995): On consistent strain methods for nonlinear problems., Proceedings of Conference
-
(1995): Zur numerischen Lösung plastischer Probleme mit Elementen niederer Ordnung., Zeitschrift für angewandte Mathematik und Mechanik
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(1995): Finite Element Algorithms for Contact Problems., Archive of Computational Methods in Engineering, 2:1-49
-
(1995): An adaptive finite element for contact problems in plasticity., Computational Mechanics, 17:88-97
-
(1995): An adaptive finite element model for frictionless contact problems., Zeitschrift für angewandte Mathematik und Mechanik, 75:T37-T40
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(1995): An Axisymmetrical Quasi-Kirchhoff-Type Shell Element for Large Plastic Deformations., Archiv of Applied Mechanics, 65:465-477
-
(1995): Stabilitätsverhalten von Gummi in Anhängigkeit von den Material- parametern und der Belastung., Zeitschrift für angewandte Mathematik und Mechanik, 75:T167-T168
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(1995): A finite element method for stability problems in finite elasticity., International Journal for Numerical Methods in Engineering, 38:1171-1200
-
(1995): On the Incompressibility constraint of the Four-Node Quadrilateral Element., International Journal for Numerical Methods in Engineering, 38:3039-3053
-
(1995): A Formulation for the Four-Node Quadrilateral Element, Part I: Plane Element., International Journal for Numerical Methods in Engineering, 38:3007-3037
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(1994): Stabilitätsverhalten von nichtlinear elastischen Werkstoffen., Zeitschrift für angewandte Mathematik und Mechanik, 74:T51-T53
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(1994): On the Stabilization of the rectangular four-node quadrilateral element., Communications in Applied Numerical Methods, 10:555-563
-
(1993): On Perturbation Behaviour in Nonlinear Dynamics., Communications in Applied Numerical Methods, 9:165-175
-
(1993): A Nonlinear Composite Shell Element with Continuous Interlaminar Shear Stresses., Computational Mechanics, 13:175-188
-
(1993): Thin shells with Finite Rotations formulated in Biot Stresses Theory and Finite-Element-Formulation., International Journal for Numerical Methods in Engineering, 36:2049-2071
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(1993): Thermomechanical Contact - A Rigorous but Simple Numerical Approach., Computers and Structures, 46:47-53
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(1993): On the Application of Augmented Lagrangian Techniques for Nonlinear Constitutive Laws in Contact Interfaces., Communications in Applied Numerical Methods, 9:815-824
-
(1993): On the Treatment of Nonlinear Unilateral Contact Problems., Ing. Archiv, 63:116-129
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(1993): Thermoelastische Stabilität von Fachwerken mit vollständiger thermomechanischer Kopplung und temperaturabhängigen Materialwerten., Zeitschrift für angewandte Mathematik und Mechanik, 73:T144-T147
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(1993): A Fully Non-Linear Axisymmetrical Quasi-Kirchhoff-Type Shell Element for Rubberlike Materials., International Journal for Numerical Methods in Engineering, 36:4027-4043
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(1992): A Nonlinear Quadrilateral Shell Element with Drilling Degrees of Freedom., Ingenieur Archiv, 62:474-486
-
(1992): Real Contact Mechanisms and Finite Element Formulation - A Coupled Thermomechanical Approach., International Journal for Numerical Methods in Engineering, 35:767-786
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(1992): A Numerical Model for Thermomechanical Contact based on Microscopic Interface Laws., Mech. Res. Comm., 19:173-182
-
(1992): Numerical Integration of Viscoplastic Material Laws at Large Strains with Application to Impact Problems., Computers and Structures, 45:165-171
-
(1992): An Efficient Algorithm for the Computation of Stability Points of Dynamical Systems under Step Load., Engineering Computations, 9:669-679
-
(1992): A Thermomechanical Approach to the Necking Problem., International Journal for Numerical Methods in Engineering, 33:869-883
-
(1992): Thermoelastic Stability of Trusses with Temperature Dependent Constitutive Relations., International Journal for Numerical Methods in Engineering, 35:1891-1906
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(1991): A Note on Finite Element Implementation of Pressure Boundary Loading., Communications in Applied Numerical Methods, 7:513-525
-
(1990): Nonlinear Stability Analysis of Shell- and Contact-Problems including Branch-Switching., Computational Mechanics, 5:428-446
-
(1990): A General Procedure for the Direct Computation of Turning and Bifurcation Points., International Journal for Numerical Methods in Engineering, 30:155-176
-
(1990): A fully nonlinear axisymmetrical membrane element for rubberlike materials., Engineering Computations, 7:303-310
-
(1990): Finite-Element-Formulation of Large Deformation Impact- Contact -Problems with Friction., Computers and Structures, 37:319-333
-
(1989): Computational Mechanics im Bereich der Festkörper- und Strukturmechanik unter Verwendung der Finite-Element-Methode., GAMM-Mitteilungsheft 2
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(1989): Theory and Numerics of Thin Elastic Shells with Finite Rotations., Ing. Archiv, 59:54-67
-
(1989): Interaktive Steuerung von nichtlinearen Finite-Element- Algorithmen mittels eines Expertensystems., Bauingenieur, 64:57-65
-
(1989): Ein quadratisch konvergentes Verfahren zur Berechnung von Stabilitätspunkten., Zeitschrift für angewandte Mathematik und Mechanik, 69:T219-222
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(1988): Thermomechanische Probleme in der Strukturmechanik., Zeitschrift der Universität Hannover, 2:8-19
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(1988): Finite-Elemente-Methode, Ein Konstruktionhilfsmittel für Bauingenieure., Baukultur, 1:7-9
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(1988): Die Verwendung von LIE-Ableitungen bei der Angabe von Spannungsflüssen für große Deformationen., Zeitschrift für angewandte Mathematik und Mechanik, 68:T264-T267
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(1988): Konzepte zur Integration von Entwurf, Konstruktion, Berechnung und Ausführung., Baukultur, 1:10-11
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(1988): A Quadratically Convergent Procedure for the Calculation of Stability Points in Finite Element Analysis., Computer Methods in Applied Mechanics and Engineering, 70:329-347
-
(1988): A Simple Method for the Calculation of Secondary branches., Engineering Computations, 5:103-109
-
(1987): A Note on the Optimum Choice for Penalty Parameters., Communications in Applied Numerical Methods, 3:581-585
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(1987): Zur Berechnung von Stoßvorgängen unter Berücksichtigung von geometrisch und physikalisch nichtlinearem Verhalten., Zeitschrift für angewandte Mathematik und Mechanik, 67:T134-T137
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(1987): Algorithms for Nonlinear Contact Constraints with Application to Stability Problems of Rods and Shells., Computational Mechanics, 2:215-230
-
(1987): Experimental Studies on the Disappearence of Subretinal Fluid after Episcleral Buckling Procedures without Drainage., Graefes Arch. Clin. Exp. Opthalmol., 225:16-18
-
(1986): A Two-Level Iterative Method for the Solution of Contact Problems., Computer Methods in Applied Mechanics and Engineering, 54:131-144
-
(1986): EDV-unterstützte Standsicherheitsnachweise (Probleme mit der Computerstatik und Lösungswege., Bauingenieur, 61:455-458
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(1986): Postbuckling Analysis involving Inelasticity and Unilateral Constraints., International Journal for Numerical Methods in Engineering, 23:779-800
-
(1986): Consistent Linearization for Path Following Methods in Nonlinear FE-Analysis., Computer Methods in Applied Mechanics and Engineering, 59:261-279
-
(1985): Der Einsatz von Mikrorechnern im Ingenieuralltag., Bauingenieur, 60:247-250
-
(1985): A Perturbed Lagrangian Formulation for the Finite Element Solution of Contact Problems., Computer Methods in Applied Mechanics and Engineering, 50:163-180
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(1985): A Note on Tangent Stiffnesses for Fully Nonlinear Contact Problems., Communications in Applied Numerical Methods, 1:199-203
-
(1985): Kurvenverfolgungsalgorithmen in der Strukturmechanik., Forschungs- und Seminarberichte aus dem Bereich der Mechanik der Universität Hannover, Bericht Nr. S 85/3
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(1984): Stability of Rods with Unilateral Constraints, a Finite Element Solution., Computers and Structures, 19:205-211
-
(1984): On an Updated Lagrangian Formulation for Divergent Solution of Timoshenko Beams subjected to Circulatory Load., Mech. Res. Comm., 10:239-244
-
(1984): Traglastberechnung ebener Stabtragwerke bei großen Verschiebungen und Verdrehungen., Zeitschrift für angewandte Mathematik und Mechanik, 64:T288-T290
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(1984): Zur Berechnung von Stäben unter nicht-konservativer Belastung mit Hilfe eines inkrementellen Arbeitsprinzipes., Zeitschrift für angewandte Mathematik und Mechanik, 64:T322-T324
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(1982): Calculation of Impact-Contact Problems of Thin Elastic Shells taking into account Geometrical Nonlinearities within the Contact Region., Computer Methods in Applied Mechanics and Engineering, 34:861-880
-
(1982): Zur Berechnung von Stoßvorgängen zwischen Kugelschalen., Zeitschrift für angewandte Mathematik und Mechanik, 62:T95-T98
-
(1980): Zur Berechnung des Stosses eines zylindrischen Stabes auf eine starre Wand., Zeitschrift für angewandte Mathematik und Mechanik, 60:T130-T132
-
(1979): Zur Berechnung des Querstosses auf ein ebenes Stabtragwerk., Zeitschrift für angewandte Mathematik und Mechanik, 59:T164-T169
-
(1978): Vergleichende Betrachtungen des Runge-Kutta-Nystroem- und des Newmark-Verfahrens zur Integration von Systemen nichtlinearer Bewegungsgleichungen., Zeitschrift für angewandte Mathematik und Mechanik, 58:T168-T170
-
(1977): Zur numerischen Integration von Systemen nichtlinearer Bewegungsgleichungen., Pflüger-Festschrift, Hannover
Article in conference proceedings
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(2019): Influence of water-induced damage mechanisms on the fatigue deterioration of high-strength concrete, Proceedings of 6th International fib Congress: Concrete - innovations in materials, design and structures (2019). | File |
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(2019): A Micro-Thermo-Mechanical Model for a Tailored Formed Joining Zone Deformed by Die Forging, ESAFORM 2019 AIP Conference Proceedings (accepted)
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(2019): A Computational Model for Biological Tissues Considering the Influence of Injury on Growth and Remodelling, Proceedings in Applied Mathematics and Mechanics
DOI: https://doi.org/10.1002/pamm.201900259 -
(2018): Simulation of bone ingrowth into bone substitutes on implant level length scale, Proceedings in Applied Mathematics and Mechanics
DOI: 10.1002/pamm.201800297 -
(2018): Internal Thickness Extrapolation, Proceedings in Applied Mathematics and Mechanics
DOI: 10.1002/pamm.201800391 -
(2018): Developing a model for the microscopic material behaviour of a tailored formed joining zone of an aluminium-steel hybrid solid component (accepted), Proceedings in Applied Mathematics and Mechanics 18
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(2017): Simulation of the Change in Mechanical Properties of Degradable Bone Implants, Proceedings of the 7th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry
DOI: 10.18419/opus-9334 -
(2017): Thermo‐mechanical modeling of turbine blades taking into account structural defects, Special Issue: 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Weimar 2017
DOI: 10.1002/pamm.201710229 -
(2017): A comparative numerical study of pressure-Poisson-equation discretization strategies for SPH, 12th International SPHERIC Workshop, Ourense, Spain
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(2017): Modelling the thermoplastic material behaviour of a tailored formed joining zone on a microscopic length scale with focus on the steel component, Proceedings in Applied Mathematics and Mechanics 17
DOI: 10.1002/pamm.201710165 -
(2017): Development of Sponge Structure and Casting Conditions for Absorbable Magnesium Bone Implants, TMS 2017 146th Annual Meeting & Exhibition Supplemental Proceedings
DOI: 10.1007/978-3-319-51493-2_29 -
(2017): A primal discontinuous Petrov Galerkin Finite Element Method, Proceedings of the 7th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry (p. 670-673)
DOI: 10.18419/opus-9334 -
(2017): A primal discontinuous Petrov-Galerkin Finite Element Method for linear elasticity, Proc. Appl. Math. Mech., 17(2017), pp. 83 - 86
DOI: 10.1002/pamm.201710025 -
(2016): A semi‐implicit multi‐fluid SPH algorithm suitable for GPU, Proc. Appl. Math. Mech., 16(2016)1, pp. 593-594.
DOI: 10.1002/pamm.201610285 -
(2016): Aerodynamical and Structural Analysis of Operationally Used Turbine Blades, Procedia CIRP, The 5th International Conference on Through-life Engineering Services (TESConf 2016)
DOI: 10.1016/j.procir.2016.09.023 -
(2016): A discontinuous shell element for the delamination analysis of composite laminates
DOI: 10.2514/6.2016-1971 -
(2016): A discontinuous Galerkin Finite Element Method for linear elasticity using a mixed integration scheme to circumvent shear-locking, Proc. Appl. Math. Mech., 16(2016)1, pp. 769 - 770
DOI: 10.1002/pamm.201610373 -
(2016): XFEM Analysis – including buckling – of composite shells containing delamination
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(2015): Multiscale homogenization for the computational mechanics of cardiovascular structures: physiopathological behavior, Report of the Workshop Computational Engineering, Oberwolfach Reports 43:31-33
DOI: 10.4171/OWR/2015/43 -
(2015): Mixed-mode delamination analysis of composite laminates with XFEM based on a cohesive zone model, 5th ECCOMAS Thematic Conference on Mechanical Response of Composites, Bristol, UK
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(2015): Möglichkeiten der simulativen Vorhersage von Temperaturentwicklung und Bauteilversagen infolge plastischer Deformation bei DP600 Bauteilen, Tekkaya, A. E.; Liewald, M.; Merklein, M.; Behrens, B.-A. (Edt.): Tagungsband zum 18. Workshop Simulation in der Umformtechnik & 3. Industriekolloquium Blechmassivumformung 2015 - DFG Transregio 73, (2015), Aachen: Shaker Verlag, pp. 113-128
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(2015): Modelling thermoplastic material behaviour of dual-phase steels on a microscopic length scale, Proc. Appl. Math. Mech., 15(2015)1, pp. 373 - 374
-
(2015): Extended FEM (XFEM) entwickelt für die Analyse von Delaminationen in ANSYS, ANSYS Conference & 33. CADFEM Users’ Meeting 2015, Messe Bremen, Germany
-
(2015): Application of the virtual element method to non-conforming contact interfaces, Proceedings of the 8th International Congress of Croatian Society of Mechanics (8th ICCSM), I. Kožar, N. Bićanić, G. Jelenić, M. Čanađija, Opatija, Croatia, 29 September - 3 October 2015
-
(2014): Numerical Homogenization in Two-dimensional Elasticity Including Unilateral Cracks, Proceedings in Contact Mechanics International Symposium (CMIS), Abu Dhabi, UAE
-
(2013): Abbildung des Werkstoffverhaltens von ferritischem Stahl in numerischen Modellen zur Darstellung von Blechmassivumformprozessen bei zyklischen Belastungspfaden, In: M. Merklein, B.-A. Behrens, A.E. Tekkaya (Edt.): Tagungsband zum 2. Erlanger Workshop Blechmassivumformung 2013, (2013), pp. 69-84
-
(2013): Incorporation of Contact Mechanics in Multi-level Computational Homogenization for the Study of Composite Materials, Proceedings of 3rd International Conference on Computational Contact Mechanics (ICCCM), Lecce, Italy
-
(2013): Contact Analysis in Multi-Scale Computational Homogenization, Proceedings of 3rd International Conference on Computational Modeling of Fracture and Failure of Materials and Structures (CFRAC), Prague, Czech Republic
-
(2013): FE²-homogenization of micromorphic elasto-plastic materials, Proceedings of the 12th International Conference on Computational Plasticity (COMPLAS XII), September 3-5, 2013, Barcelona, Spain
-
(2013): Finite element simulation of myocardial stabilising structures and development of new designs, In: Biomedical Engineering / Biomedizinische Technik 58 (Suppl. 1), DOI 10.1515/bmt-2013-4061
-
(2013): A Multiscale Method to analyze the deterioration due to Alkali Silica Reaction considering the effects of temperature and relative humidity, accepted by V Coupled Problem Conference
-
(2012): Computational Homogenisation of Polycrystalline Elastoplastic Microstructures at Finite Deformation, 6th ECCOMAS Proc., e-Book Full Papers, 6213-6228
-
(2012): Geometric adaption of resorbable myocardial stabilizing structures based on the magnesium alloys LA63 and ZEK100 for the support of myocardial grafts on the left ventricle, In: Biomedical Engineering / Biomedizinische Technik 57 (Suppl. 1), DOI 10.1515/bmt-2012-4214
-
(2012): 3D vs. 2D Modelling of Cracking and Plasticity in Polycrystalline Materials, 10th WCCM Proc.
-
(2012): Multiscale Modeling of Alkali Silica Reaction Induced Damage in Concrete: Coupled Hydro-Chemical and Thermo-Mechanical Effects, 10th WCCM Proc., 2012(accepted)
-
(2012): Computational Thermal Homogenization of Concrete, PAMM
-
(2011): Towards the Effective Behaviour of Polycrystalline Microstructures at Finite Strains, COMPLAS XI. Proc., 1573-1583
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(2011): Adaptive Multisclae Failure Analysis based on Error Estimation, Proceeding of the 3rd ECCOMAS Thematic Conference on the Mechanical Response of Composites
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(2011): Computational Homogenization of Damage in the Hardened Cement Paste due to Alkali Silica Reaction, , PAMM · Proc. Appl. Math. Mech. 11, 561 – 562 (2011) / DOI 10.1002/pamm.201110270
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(2011): A Method of Two-Scale Chemo-Thermal-Mechanical Coupling For Concrete,, In Computational Pasticity XI: Fundamentals and Applications, Barcelona, Spain, 1626–1637, (2011), COMPLASXI Proceedings
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(2010): Homogenization of Granular Material modeled by a 3D DEM, Particle-Based Methods. Fundamentals and Applications, pp. 211-231, Springer, in press
-
(2010): Characterization of Concrete by a Multiscale Approach, Proceedings of the International RILEM Conference on Material Science, Vol II, Ed. W. Brameshuber, pp 3-12, RILEM, S. A. R. L., Bagneux
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(2010): Chemo-Thermo-Mechanics Coupling Applied in Hardened Cement Paste. PAMM · Proc. Appl. Math. Mech. 10, 391 – 392 (2010) / DOI 10.1002/pamm.201010188
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(2009): A 3D Coupled Finite-Discrete Element Method for Modeling the Interaction of Granular Materials and Solid Structures, Particle-Based Methods, Fundamentals and Applications, pp. 72-75
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(2009): A contact homogenization framework for granular interfaces., Proceedings of the 80th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM) (February 9 - 13, 2009), Gdansk (Poland)
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(2009): Homogenization of Granular Material Modeled by a Three-Dimensional Discrete Element Method, Particle-Based Methods, Fundamentals and Applications, pp. 84-87
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(2008): A Finite Element Algorithm for Electromechanical Contact Problems, Proceedings in Applied Mathematics and Mechanics, 8, pp. 10493-10494
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(2008): A Coupled 3D Discrete-Finite Element Method for the Simulation of Granular Materials and Their Interaction with Solid Structures, Proceedings in Applied Mathematics and Mechanics, 8(1), pp. 10353-10354
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(2008): A Coupled Discrete-Finite Element Method Modeling the Interaction of Granular Materials and Solid Structures, CD-ROM Proceedings of the 8th World Congress on Computational Mechanics (WCCM 8) and the 5th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008), CIMNE 2008
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(2008): A Computational Method for three Dimensional Finite Deformation Fracture, Proceedings of the XXII ICTAM, 25-29 August 2008, Adelaide, Australia
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(2008): On the computation of the macroscopic tangent for multiscale volumetric homogenization problems., Proceedings of the 79th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM) (March 31 - April 4, 2008), Bremen
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(2008): Computation of Effective Cement Paste Diffusivities from Microtomographic Images.
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(2008): Material Characterization based on MicrostructuralComputations and Homogenization, Proceedings of the IUTAM Symposium onTheoretical, Computational and Modelling Aspects of Inelastic Media, ed. D. Reddy
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(2008): Brick elements for finite deformations based on macro-concepts and on inhomogeneous mode enhancement, Proceedings of the ECCOMAS Jubilee Conference, ed. H. Mang, Wien
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(2008): Homogenization and Multi-Scale Approaches for Contact Problems., 129-161
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(2008): On Multiscale Methods in Contact Mechanics., Proceedings of 6th GRACM 2008, Eds. D. Talaslidis, Thessaloniki
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(2007): Homogenization of granular materials modeled through a three-dimensional Discrete Element Model, Proceedings of the First Seminar on The Mechanics of Multifunctional Materials, pp. 147-150
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(2007): A database approach to homogenization., In J. Schroeder et al., editors, Proceedings of the First Seminar on the Mechanics ofMultifunctional Materials (May 7-10, 2007), Bad Honnef, pages 135-138
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(2006): Finite-element transient calculation of a bell struck by a clapper, The Journal of the Acoustical Society of America, 119:3290
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(2006): A Finite Element Formulation Based on the Theory of a Cosserat Point -- Extension to Ogden Material, Proceedings III European Conference on Computational Mechanics 2006
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(2006): A numerical method for homogenization in isotropic and anisotropic nonlinear elasticity., In P. Gumbsch, editor, Multiscale Materials Modeling (September 18-22, 2006), Freiburg, pages 237-240
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(2006): Virtual Experiments in Engineering Material Design Processes., 3-7
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(2005): 3D Beam-to-beam Contact Within Coupled Electromechanical Fields: a Finite Element Model.
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(2005): A finite element formulation based on the theory of a Cosserat point, PAMM, 5, 379-380
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(2005): Reduction Methods in Finite Element Analysis of Nonlinear Structural Dynamics, Proceedings of the Fifth {EUROMECH} Nonlinear DynamicsConference (ENOC), Eindhoven
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(2005): Reduction Methods for FE Analysis in Nonlinear Structural Dynamics, PAMM, 5, 135-136
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(2005): Elastoplasticity by Mathematical Programming Methods.
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(2005): A Three-dimensional Contact Element Based onthe Moving Friction Cone Approach and the Elliptical Coulomb Law, Proceedings of COMPLAS 8, eds. D. R. J. Owen and E. Onate, CIMNE, Barcelona
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(2005): Simulating the Microstructure of cement-based Construction Materials, PAMM, 5, 401-402
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(2005): A Micro-macro Approach for Cement-based Construction Materials, Proceedings of COMPLAS 8, eds. D. R. J. Owen and E. Onate, CIMNE,Barcelona
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(2005): Mikromechanische Modellierung von Beton, Jürgen Grünberg zum 60. Geburtstag, Herausgeber: M. Hansen and J. Lierse, Berichte des Instituts für Massivbau, No. 3, Fraunfofer IRB Verlag, Stuttgart
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(2005): Intelligent Support of Engineering Analysis, AI-METH 2005 – Artificial Intelligence Methods
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(2005): Micro characterization of materials with microheterogeneous structure, Proceedings of COMPLAS 8, eds. D. R. J. Owen and E. Onate, CIMNE, Barcelona
-
(2005): Aspects of computational homogenisation of microheterogeneous materials including decohesion at finite strains, PAMM, 5, 427-428
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(2005): On the Explicite Simulation of Concrete Cracking Using One Enriched Finite Element Method, Proceedings of COMPLAS 8, eds. D. R. J. Owen and E.Onate, CIMNE, Barcelona
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(2004): Analysis of Bell Vibrations.
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(2004): Different weak FE-formulations for 2-D frictionless Large Deformation Contact based on the Mortar Method, PAMM, 4, 312-313
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(2004): A time-stepping algorithm for nonsmooth friction models, Proceedings of ECCOMAS, on CD
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(2004): An adaptive method for large deformation thermo-mechanical problems with unilateral constraints.
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(2004): Computational Contact Mechanics.
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(2003): Adaptive methods for contact problems, Errorcontrolled Adaptive Finite Elements in Solid Mechanics, ed. E. Stein, Wiley, Chichester, pp. 147 - 179
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(2003): An Explicit Multi-Body Contact Algorithm, PAMM, 3, 280-281
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(2003): A Micro- Thermomechanical coupled Finite-Element Model for the Simulation of Particulate Cellular Solids at Finite Strains, PAMM, 3, 274-275
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(2003): Development of a Contact Element for Finite Deformations using the Mortar Method, PAMM, 3, 272-273
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(2003): Advances in Adaptive Methods for Thermo-Mechanical Contact Problems, Computer Methods in Mechanics 2003 in Gliwice, Poland, ed. A. Borkowski
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(2003): Recent Developments in Contact Mechanics, 4thEuropean LS-DYNA Users Conference in Ulm, ed. K. Schweizerhof, Dynamore
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(2003): A simple wrinkling algorithm for orthotropic membranes at finite deformations, Proceedings Textile Composites and inflatable Structures, Structural Membranes
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(2003): Homogenization of microheterogeneous materials considering interfacial delamination at finite strains., Proceedings VII International Conference on Computational Plasticity, COMPLAS
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(2003): Computation of wirnkling states in membranes, Textile composites and inflatable structures, eds. E. Onate and B. Kröplin,CIMNE, Barcelona
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(2002): An adaptive finite element method for discontinuous localization analysis.
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(2002): A Reduced Integration Scheme for the Analysis of Microheterogeneous Materials in Finite Elasticity.
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(2002): Variational Design Sensitivity Analysis of Structures with Finite Thermo-Elastic-Plastic Deformations.
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(2002): A two-dimensional C^1-continuous contact element based on the moving friction cone description.
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(2002): Convergence studies for 3D smooth frictional contact elements based on quartic Bezier surfaces., 371-378
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(2002): 3D beam-to-beam contact finite element.
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(2002): Consistent Coupling of Beam and Shell Elements for Thermo-Mechanical Analysis.
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(2002): Customization of GiD & FEAP for Scientific Applications.
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(2001): Simulation of effective rubber properties during cross-linking using a simple network model.
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(2001): Computation analysis of contact mechanics undergoing large 3d deformations.
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(2000): Neues Stoffmodell für Hohlraumbauten im Salzgebirge., 51:25-44
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(2000): Tridimenzionalni kontaktni element z uporabo Bezierovih ploskev cetrtega reda., 215-222
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(2000): Large step approach for the simple 2D and 3D frictional contact elements., 45-52
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(2000): Symbolically generated 3D smooth polynomial frictional contact element based on the quartic Bezier surfaces.
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(2000): Finite Element Methods for Rolling Contact., 411:85-162
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(2000): H-Adaptive finite element methods for contact problems., 117-141
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(1999): A Frictional Law for Soil-Concrete Contact based on a Numerical Model for the Microstructure., 2:333-344
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(1999): The critical displacement method with a constitutive damage model.
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(1999): Development of 2D contact elements with C1-continuity., 127-134
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(1999): Geometric Exact Models, Symplectic and Energy/Momentum Methods, and Active Degrees of Freedom for the Dynamics of Shells and Rods.
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(1999): Computational Simulation of the Vulcanization Process in Rubber Profile Production.
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(1999): An adaptive finite element method for large deformation frictional contact., 38:91-112
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(1999): Finite elements for thermo-mechanical contact and adaptive finite element analysis of contact problems., 179-246
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(1999): Adaptive Methods for Contact Problems, Recent Developments.
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(1999): Comparison of different error measures for adaptive finite element techniques applied to contact problems involving large elastic strains., 211 - 222
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(1999): h-Adaptive FE-Methods for Contact Problems.
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(1999): Development of 2D Smooth Polynomial Frictional Contact Element based on a Symbolic Approach.
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(1999): An Automatic Control Technique to avoid Hourglass Instabilities in Unstructured Meshes.
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(1999): Modelling of Thermo-Mechanical Material Behaviour of Rubber-like Polymers - Micromechanical Motivation and Numerical Simulation.
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(1998): An Integration Scheme for the Nonlinear Dynamics which is independent of the Involved Nonlinearities.
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(1998): Kontaktmodelle für die Interaktion Baugrund Tragwerk., 38:91-112
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(1997): Numerical Simulations of the Behaviour of Cohesionless Soil.
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(1997): Symbolic Approach in Computational Mechanics.
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(1997): A New Element Formulation for Nonlocal Damage Models.
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(1997): Adaptive Methods for Contact Problems.
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(1997): Finite Element Formulations of five and six Parameter Shell Theories accounting for Finite Plasticity.
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(1996): Formulation and Energy-Momentum Methods for the Nonlinear Dynamics of Geometric Exact Structures with a Nonlinear Configuration Space: Application to Chaotic and Large Overall Motion.
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(1996): A continuum based framework for the finite element analysis of proximal arteries., 335-338
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(1995): On Contact Geometrical Relationschips.
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(1995): Elastoplastic contact problems solved by the cross-constraint method.
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(1995): An adaptive finite element technique for nonlinear contact problems.
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(1995): An adaptive finite element method for elastoplastic contact problems.
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(1995): Parallele Algorithmen und Hardware für Berechnungsverfahren des Ingenieurbaus.
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(1994): Numerische Simulation schnell laufender Risse in viskoplastischen Materialien., 93
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(1994): On Numerical Analysis of Thermomechanical Contact Problems.
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(1994): Adaptive Techniques for the Contact of Elastic Bodies., 78-86
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(1993): Kritische Wertung nichtlinearer Stabtheorien bei Anwendung auf baupraktische Aufgabenstellungen.
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(1993): Recent Trends in Computational Methods for Contact Problems.
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(1992): Consistent Formulation for Thermomechanical Contact based on Microscopic Interface Laws.
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(1992): Entwicklungstendenzen bei nichtlinearen FE-Methoden.
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(1992): Recent Advances in the Simulation of Thermomechanical Contact Precesses.
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(1992): On the Treatment of Contact Contraints within Coupled Thermomechanical Analysis.
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(1992): On Thermomechanical Contact within Large Deformation Problems.
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(1992): Contact Constraints within Coupled Thermomechanical Analysis - A Finite Element Model.
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(1992): The mothod of orthogonal projections for handling constraints with applications to incompressible four-node quadrilateral elements.
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(1991): An Efficient Thermomechanically Coupled Contact Element based on Microscopic Physical Behaviour of Surfaces.
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(1991): Impact Problems in Structural Mechanics: Theoretical and Numerical Aspects.
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(1991): The Computation of Bifurcation Points via Fold Curves.
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(1990): Finite-Elemente-Methoden und ihre Absicherung in der Mathematik.
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(1990): Numerical Procedures for the Computation of Singular Points and Postcritical Branches.
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(1990): The Impact of Computer Aided Teaching in Lecturing Computational Mechanics.
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(1990): Interactive Control of Non-linear Finite Element Calculations by an Expert System.
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(1990): Large Deformation Contact Problems of Axisymmetrical Membranes and Shells, A Finite Element Solution.
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(1989): Models of Friction, Finite-Element-Implementation and Application to Large Deformation Impact-Contact-Problems.
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(1989): Grundlagen nichtlinearer Berechnungsverfahren in der Strukturmechanik.
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(1989): On the Thermomechanical Treatment of Necking Problems, a Finite Element Solution.
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(1989): Large deformations of thin shells: Theory and Finite-Element- Discretization, Analytical and Computational Models of Shells., 135-159
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(1988): A General Concept for Thermomechanical Coupling.
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(1988): Five Lectures on Nonlinear Finite Element Methods.
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(1988): Concepts of Modeling and Discretization of Elastic Shells for Nonlinear Finite Element Analysis.
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(1988): Solution Methods for Stability Analysis.
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(1988): A Solution Method for the Postcritical Analysis of Contact Problems.
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(1987): On Consistent Tangent Matrices for Frictional Contact Problems.
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(1987): Zur Berechnung von Stoßvorgängen bei Rahmentragwerken.
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(1986): Postbuckling Analysis of Stability Problems with Nonlinear Contact Constraints.
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(1986): A Shear-Elastic Shell Theory and Finite-Element-Postbuckling Analysis including Contact.
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(1985): Traglastuntersuchungen ebener Stabtragwerke bei großen Verschiebungen und Verdrehungen.
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(1985): Penalty and Augmented Lagrangian Formulations for Contact Problems.
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(1981): Incremental Calculations of Frictional Impact-Contact Problems with Application to Elastic Rods and Shells.
Research report
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(1999): Smooth surface discretization for large deformation frictionless contact.
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(1996): Investigation of impact problems via adaptive finite element methods.
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(1996): Thermo-Kontakt.
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(1995): Improved enhanced strain four node element with Taylor expansion of shape functions.
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(1995): Mixed methods in finite element plasticity.
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(1995): Adaptive Methoden für Kontaktprobleme.
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(1995): Untersuchung des bruchdynamischen Verhaltens von Rissen in viskoplastischen Materialien.
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(1994): Tätigkeitsbericht Darmstadt zum Forschungsvorhaben Wr 19/5-1 Parallele Iterationsverfahren.
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(1992): Thermo-Kontakt.
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(1989): Rechnergestützte Traglastberechnung von Stahlbetonplattenbalken und -rahmen.
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(1989): Materialgesetze zum Verhalten von Betonkonstruktionen bei harten Stößen.
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(1988): Konsistente Linearisierungen in der Kontinuumsmechanik und ihre Anwendung auf die Finite-Element-Methode.
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(1986): Nichtlineare Stoß- und Kontaktprobleme und ihre inkrementelle numerische Behandlung.
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(1985): Die Behandlung der Inkompressibilität mit gemischten finiten Elementen oder der selektiv- reduzierten Integration.
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(1984): Entwurf einer Richtlinie für das Aufstellen und Prüfen von elektronischen Standsicherheitsnachweisen.
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(1984): Thermomechanischer Kontakt.
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(1984): Solution Methods for Contact Problems.
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(1981): Zur Berechnung von Kontakt- und Stoßproblemen elastischer Körper mit Hilfe der Finite-Element-Methode.
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(1976): Voruntersuchungen zum Schwingungsverhalten des Grossen Wellenkanals, Teilprojekt C1.
Presentation
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(2019): Coupled computational implant degradation and bone ingrowth model, 4th International Conference on Biomedical Technology (ICBT), Hannover, Germany
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(2019): Numerical modeling of ship collision with coupled DE-FE approach, International Centre for Numerical Methods in Engineering (Marine), Gothenburg, Sweden, 13-15 May
-
(2019): A Continuum Model for Soft Biological Tissues: Collagen Damage Coupled with Growth and Remodeling, 4th International Conference on Biomedical Technology, Hannover, Germany
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(2019): A Computational Model for Biological Tissues Considering the Influence of Injury on Growth and Remodelling, 90th Annual Meeting of the International Association of Applied Mathematics and Mechanics, Vienna, Austria
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(2019): Continuum Modeling the Behavior of Soft Biological Tissues During and Due to Unphysiological Loading (poster presentation), 16th International Symposium on Computer Methods in Biomechanics and Biomedical Engineering, New York, USA
-
(2019): Growth-and-Remodelling and Injury in Arterial Tissues: Chemo-Mechano-Biological Modelling, 25th Congress of the European Society of Biomechanics, Vienna, Austria
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(2019): Peridynamic Petrov-Galerkin method: A generalization of the peridynamic theory of correspondence materials, 90th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2019), Vienna, Austria, 18-22 February 2019
-
(2019): The Peridynamic Petrov Galerkin Method-A Generalized Peridynamic Correspondence Formulation for Finite Elasticity and Fluid Flows, VI International Conference on Particle-Based Methods (Particles 2019), Barcelona, Spain, 28-30 October 2019
-
(2019): Peridynamic Petrov-Galerkin for Finite Elasticity, Thematic Conference of the European Community in Computational Methods in Applied Sciences on eXtended Discretization MethodS for partial differential equations on complex and evolving domains (X-DMS 2019), Lugano, Switzerland 03-05 July 2019
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(2018): Simulation of bone ingrowth into bone substitutes on implant level length scale, 89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2018), Munich, Germany, 19-23 March 2018
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(2018): Bulk material models in cohesive zone elements, 89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2018), Munich, Germany, 19-23 March 2018
-
(2018): Material model for a composite with ductile and brittle constituents, 6th European Conference on Computational Mechanics (ECCM 6), Glasgow, UK, 11-15 June 2018
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(2018): Metal Particle Melting Analysis for Additive Manufacturing Using the Stabilized Optimal Transportation Method, 89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2018), Munich, Germany, 19-23 March 2018
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(2018): Developing a model for the microscopic material behaviour of a tailored formed joining zone of an aluminium-steel hybrid solid component, 89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2018), Munich, Germany, 19-23 March 2018
-
(2018): Micromechanical thermoplastic material model for aluminium in a continuum mechanics framework, 6th International Symposium on Computational Mechanics of Polycrystals (CMCn 2018), Düsseldorf, Germany, 17-18 September 2018
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(2018): Describing the material behaviour of a tailored formed joining zone of an aluminium-steel hybrid solid component on a microscopic length scale, 6th European Conference on Computational Mechanics (ECCM 6), Glasgow, UK, 11-15 June 2018
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(2018): Computational modelling of particle filled structures with application in ship building, 89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2018), Munich, Germany, 19-23 March 2018
-
(2018): Computational modelling of ship collision, Contact Mechanics International Symposium (CMIS) Oropa,Italy. May 16-18, 2018
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(2018): Numerical modelling of collision of particle-filled structures,6th European Conference on Computational Mechanics (ECCM 6), Glasgow, UK, 11-15 June 2018
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(2018): Multiphysics modelling of damage-induced response in arterial tissue: a computational framework for in-stent restenosis, Virtual Physiological Human Conference, Zaragoza, Spain
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(2018): A Chemo-mechano-biological Approach for the Computational Modelling of In-stent Restenosis, 10th European Solid Mechanics Conference, Bologna, Italy
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(2018): A Multiphysics Approach for Modelling the Response of Arterial Tissue to Stent-induced Mechanical Injury (poster presentation), 8th World Congress of Biomechanics, Dublin, Ireland
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(2018): Computational strategies for chemo-mechano-biological response to arterial injury, 13th World Congress on Computational Mechanics, New York, USA
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(2018): The novel discontinuous Petrov-Galerking Finite Element Method for nearly incompressible material behaviour in solid mechanics, 89th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2018), Munich, Germany, 19-23 March 2018
-
(2018): The novel discontinuous Petrov-Galerkin Finite Element Method: application to small and large deformations in solid mechanics, 6th European Conference on Computational Mechanics (ECCM 6), Glasgow, UK, 11-15 June 2018
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(2017): Simulation der Degradation schwammähnlicher Strukturen aus Magnesiumlegierungen als Knochenersatzmaterial, Jahrestagung der Deutschen Gesellschaft für Biomechanik 2017, Hannover, Germany, 29-31 March 2017
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(2017): Simulation of the Degradation of Bone Implants using Finite Element Method, Third ECCOMAS thematic conference on Biomedical Technology (ICBT 2017), Hannover, Germany, 6-8 November 2017
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(2017): Simulation of the Change in Mechanical Properties of Degradable Bone Implants, 7th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry (GACM 2017), Stuttgart, Germany, 11-13 October 2017
-
(2017): Numerical Simulation of Contact using Optimal Transportation Meshfree (OTM) Method, 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2017), Weimar, Germany, 6-10 March 2017
-
(2017): Simulation of Ductile Damage and Fracture at Finite Strain by Optimal Transportation Meshfree (OTM) method, XIV International Conference on Computational Plasticity (COMPLAS 2017), Barcelona, Spain, 5-7 September 2017
-
(2017): Modelling the thermoplastic material behaviour of a tailored formed joining zone on a macroscopic length scale, XIV International Conference on Computational Plasticity (COMPLAS 2017), Barcelona, Spain, 5-7 September 2017
-
(2017): Metal Particle Melting for Powder Based Additive Manufacturing Using Optimal Transportation Meshfree Method, 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2017), Weimar, Germany, March 6-10, 2017
-
(2017): Metal Particle Melting Using Optimal Transportation Meshless Method, Berkeley/Stanford CompFest 2017, Berkeley, USA, April 8th 2017
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(2017): Metal Particle Melting and Solidification for Powder Based Additive Manufacturing Using Optimal Transportation Meshfree Method, IUTAM/AMERIMECH Symposium on Computational Mechanics of Particle-Functionalized Fluid and Solid Materials for Additive Manufacturing and 3D Printing Processes, Berkeley, USA, May 30-31, 2017
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(2017): Melting and Solidification of Powder Based Additive Manufacturing Using Optimal Transportation Meshfree Method, Simulation for Additive Manufacturing, Munich, Germany, October 11-13, 2017
-
(2017): Numerical simulation of granular materials during confined compression, 5th International Conference on Particle-Based Methods (Particles 2017), Hannover, Germany
-
(2017): Computational modelling of granular materials during confined compression, 5th International Conference on Computational Contact Mechanics (ICCCM), Lecce, Italy July 5-7, 2017
-
(2017): Numerical simulation of granular materials during confined compression, 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2017), Weimar, Germany, 6-10 March 2017
-
(2017): Modelling the thermoplastic material behaviour of a tailored formed joining zone on a microscopic length scale, XIV International Conference on Computational Plasticity (COMPLAS 2017), Barcelona, Spain, 5-7 September 2017
-
(2017): Modelling the thermoplastic material behaviour of a tailored formed joining zone on a microscopic length scale with focus on the steel component, 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2017), Weimar, Germany, 6-10 March 2017
-
(2017): Analysis of arterial multiphysics via a novel chemo-mechano-biological model, 3rd Soft Tissue Modelling Workshop (07.06.17 - 09.06.17, Glasgow, UK)
-
(2017): Arterial physiopathological remodeling: a framework for investigating the role of molecular transport and multiscale constitutive response, 3rd International Conference on Biomedical Technology, ECCOMAS Thematic Conference (06.11.17 - 08.11.17, Hannover, Germany)
-
(2017): Constitutive response and structure of soft biological tissues: direct and inverse identification of parameters , 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (6.03.2017 - 10.03.2017, Weimar, Germany)
-
(2017): A novel finite-element multiscale formulation for microstructured soft materials with crimped fibers , 23rd Congress of the Italian Association of Theoretical and Applied Mechanics (04.09.17 - 07.09.17, Salerno, Italy)
-
(2017): A chemo-mechano-biological approach for multiphysics arterial pathophysiology: from cell-cell signalling pathways to multiscale tissue mechanics , 10. Jahrestagung der Deutschen Gesellschaft für Biomechanik (29.03.17 - 31.03.17, Hannover, Germany)
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(2017): In silico assessment of individualized implants: a chemo-mechano-biological approach for arterial pathophysiology , Jahrestagung der BIOMEDIZINISCHEN TECHNIK und Dreiländertagung der MEDIZINISCHEN PHYSIK (10.09.17 - 13.09.17, Dresden, Germany)
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(2017): 3D Fracture modeling by extended finite element method and gradient enhanced damage, 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2017), Weimar, Germany, 6-10 March 2017
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(2017): Dynamic brittle fracture by XFEM and gradient-enhanced damage, International Conference on Computational Fracture and Failure of Materials and Structures (CFRAC 2017), 14-16 June 2017, Nantes, France
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(2017): A primal discontinuous Petrov-Galerkin Finite Element Method, 7th GACM Colloquium on Computational Mechanics for Young Scientists from Academia and Industry (GACM 2017), Stuttgart, Germany, 11-13 October 2017
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(2017): A low-order discontinuous Petrov-Galerkin Finite Element Method, 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2017), Weimar, Germany, 6-10 March 2017
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(2017): A low-order discontinuous Petrov-Galerkin Finite Element Method, Modern Finite Element Technologies (MFET 2017), Bad Honnef, Germany, 21-23 August 2017
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(2017): A Virtual Element Method for Large Deformation Contact, 88th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2017), 06-10 March 2017, Weimar, Germany
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(2017): A Virtual Element Method for Large Deformation Contact, Polytopal Element Methods in Mathematics and Engineering (POEMS 2017), 5-7 July, Milano, Italy
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(2017): A Virtual Element Method for Large Deformation Contact, Modern Finite Element Technologies (MFET 2017), 21-23 August, Bad Honnef, Germany
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(2016): Towards a Multiscale Approach to Modeling Nanoparticle Reinforced Elastomers, Workshop on Multiscale Modeling and Model Reduction, Aachen, Germany (Jun, 2016)
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(2016): Simulation of Selective Laser Melting Processes, Workshop Additive Manufacturing Quantifiziert, Hannover, 22 September 2016
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(2016): DEM-FEM coupled numerical investigation of granular materials to increase crashworthiness of double-hull vessels, 87th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2016), Braunschweig, Germany, 7-11 March 2016
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(2016): Validation of a multiscale FEM approach for elastomer friction on rough surfaces, 8th Contact Mechanics International Symposium (CMIS 2016), Warsaw, Poland, 11-13 May 2016
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(2016): Multiscale FEM approach for hysteresis friction and adhesion of rubber on rough surfaces, 7th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), Crete, Greece, 5-10 June 2016
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(2016): Material Modeling based on Multiscale Analyis, University of Cape Town
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(2016): Finite element formulations for large strains in anisotropic materials, keynote lecture, ECCOMAS 2016, Crete
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(2016): A Multiscale Approach for Modeling Thermoplastic Material Behaviour of Dual-Phase Steels - From Microscopic to Macroscopic Length Scale, Plenary Lecture at the World Congress of Computational Mechanics, WCCM & APCOM, Seoul, 2016
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(2016): Modelling the Thermoplastic Material Behaviour of Dual-Phase Steels on a Microscopic Length Scale, 87th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2016), Braunschweig, Germany, 7-11 March 2016
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(2016): Modeling of fracture in polycrystalline materials with the XFEM, 7th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), Crete, Greece, 5-10 June 2016
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(2016): A discontinuous Galerkin Finite Element Method for linear elasticity using a mixed integration scheme, 7th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), Crete, Greece, 5-10 June 2016
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(2016): Two-dimensional discontinuous Galerkin & discontinuous Petrov Galerkin Method, 87th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2016), Braunschweig, Germany, 7-11 March 2016
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(2016): The Virtual Element Method for Large Deformation Contact , 7th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), Crete, Greece, 5-10 June 2016
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(2016): The Virtual Element Method and its application on adaptive mesh refinement , Special Workshop Multiscale Modeling of Heterogeneous Structures (MUMO) 2016, Dubrovnik, Croatia, September 21-23, 2016
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(2015): Abrasive Wear: Towards a Multiscale Approach, 26th Annual Robert J. Melosh Symposium, Durham, USA, 24-Apr-2015
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(2015): Abrasive Wear: Towards a Multiscale Approach, 4th International Conference on Computational Contact Mechanics (ICCCM15), Hanover, Germany, 27-29 May 2015
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(2015): A multiscale projection method for the thermomechanical simulation of the interaction of microcracks with a macrocrack, X-DMS 2015, eXtended Discretization Methods, Ferrara, Italy, September 9-11, 2015
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(2015): A multiscale contact homogenization approach for hysteresis friction of rubber on rough surfaces, 86th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2015), Lecce, Italy, 23-27 March 2015
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(2015): Thermomechanical Multiscale FEM Approach for Sliding Elastomers on Rough Surfaces, 6th Edition of the International Conference on Computational Methods for Coupled Problems in Science and Engineering (Coupled Problems 2015), San Servolo, Venice, Italy, 18-20 May 2015
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(2015): Thermomechanical Multiscale FEM Approach for Sliding Elastomers on Rough Surfaces, 4th International Conference on Computational Contact Mechanics (ICCCM15), Hanover, Germany, 27-29 May 2015
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(2015): An extended finite element model for the delamination analysis of composite laminates, 18th International Conference on Composite Structures (ICCS18), At Lisbon, Portugal
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(2015): Modelling the Thermoplastic Material Behaviour of Dual-Phase Steels on a Microscopic Length Scale and Deducing Corollaries for Material Models on a Macroscopic Length Scale, COMPLAS 2015, Barcelona, Spain
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(2015): Modelling the Thermoplastic Material Behaviour of Dual-Phase Steels on a Microscopic Length Scale, GAMM 2015, Lecce, Italy
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(2015): Modellierung der Temperaturentwicklung während der Blechmassivumformung unter Berücksichtigung der Mikrostruktur des Werkstoffes, Norddeutsches Mechanik-Kolloquium, Hannover, Germany
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(2015): 3D ductile crack propagation with the XFEM , 86th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2015), Lecce, Italy, 23-27 March 2015
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(2015): Crack Propagation in poly crystalline materials, X-DMS 2015, eXtended Discretization Methods, Ferrara, Italy, September 9-11, 2015
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(2015): Application of the virtual element method to non-conforming contact interfaces , 3rd Eccomas Young Investigators Conference, July 20-23, 2015, RWTH Aachen
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(2015): Application of the virtual element method to non-conforming contact interfaces , Thematic Conference on eXtended Discretization MethodS, September 9- 11, 2015, Ferrara
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(2015): Application of the virtual element method to non-conforming contact interfaces , 86th Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM 2015), Lecce, Italy, 23-27 March 2015
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(2015): Application of the virtual element method to non-conforming contact interfaces, 8th International Congress of Croatian Society of Mechanics (8th ICCSM), 29 September - 3 October 2015, Opatija, Croatia
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(2014): Multiscale-Multiphysics Modeling of Processes, Young Investigators Meet, Hannover, Germany, (Nov, 2014)
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(2014): Modeling Abrasive Wear: Towards and Multiscale Fracture Approach, 11th World Congress on Computational Mechanics (WCCM XI), Barcelona, Spain, 20-25 July 2014
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(2014): Multiscale Multiphysics Outlook to Modelling Abrasive Wear, 6th Contact Mechanics International Symposium (CMIS 2014), Abu Dhabi, United Arab Emirates, 03-05 February 2014
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(2014): Reduced Order Model for Nonlinear Structural Mechanics, Workshop on Recent Trends and Future Developments in Computational Science and Engineering, March 26-28, 2014,Plön, Germany
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(2014): A multiscale contact homogenization technique for rubber friction on rough surfaces, 7th Contact Mechanics International Symposium (CMIS 2014), Abu Dhabi, United Arab Emirates, 03-05 February 2014
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(2014): Multiscale FEM approach for rubber friction on rough rigid surfaces, 14th European Mechanics of Materials Conference (EMMC-14), Gothenburg, Sweden, 27-29 August 2014
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(2014): Multiscale FEM for rubber friction on rough surfaces, 11th World Congress on Computational Mechanics (WCCM XI), Barcelona, Spain, 20-25 July 2014
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(2014): Modelling the temperature development during sheet-bulk-metal forming considering the microstructure of the material, GAMM 2014, Erlangen, Germany
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(2013): Formulation of 3D Nonlocal Cohesive Zone Model for Finite Thickness Interfaces: Application to Crack Modeling in Filled Elastomeric Materials, 3rd International Conference on Computational Contact Mechanics- ICCCM, Lecce, Italy, 10- 12 July 2013
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(2013): Micromechanical Model for Mullins Effect Induced Anisotropic Damage in Filled Elastomers, 12th US National Congress on Computational Mechanics (USNCCM 12), July 22-25, Raleigh, USA
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(2013): Computational Implementation of Finite Thickness Nonlocal Cohesive Zone Element for Crack Propagation in Filled Elastomers, German Association for Computational Mechanics Symposium, Hamburg, Germany, 02-04 Oct (2013) (Note: The work was also presented as a poster & was awarded the best poster award)
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(2013): Model adaptivity within a 3D multiscale context for XFEM for cracks, GAMM 84rd Annual Meeting, Novi Sad, 18. - 22. März 2013
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(2013): Discretization and model adaptivity for the multiscale XFEM simulation of arbitrary crack geometries using unstructured meshes, Third International Conference on Computational Modeling of Fracture and Failure of Materials and Structures, Prag, 05. - 07. Juni 2013
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(2013): FE²-homogenization of micromorphic elasto-plastic materials, 12th International Conference on Computational Plasticity (COMPLAS XII), Barcelona, 3-5 September 2013
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(2013): Methods to stabilize demolding simulations, 3rd International Conference on Computational Contact Mechanics, Lecce, Italy, 10-12 July 2013
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(2013): Model Reduction by using Dynamic-POD, 2nd International Workshop on Reduced Basis, POD and PGD model , November 3-6, 2013, BLOIS CASTLE, france.
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(2013): Development of magnesium alloy scaffolds to support biological myocardial grafts - A finite element investigation, International Conference on Biomedical Technology. European Community on Computational Methods in Applied Sciences (ECCOMAS). Hannover, 20.-22.11.2013.
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(2013): Finite element simulation of myocardial stabilising structures and development of new designs, BMT 2013. 3-Ländertagung der Fachgesellschaften ÖGBMT/SGBT/DGBMT. Graz, 19.-21.09.2013
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(2013): Isogeometric Analysis of Delamination in Composites, Third International Conference on Computational Modeling of Fracture and Failure of Materials and Structures, Prague, 05. - 07. Juni 2013
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(2013): Isogeometric Analysis of Mixed–Mode Delamination in Composites, 3rd International Conference on Computational Contact Mechanics- ICCCM, Lecce, Italy, 10- 12 July 2013
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(2013): Modelling the temperature development during sheet-bulk-metal forming using material isomorphism, COMPLAS 2013, Barcelona, Spain
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(2013): Modelling the temperature development during sheet-bulk-metal forming using material isomorphism, GAMM 2013, Novi Sad, Serbia
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(2012): Recovery based error estimation for 3D multiscale computations within the XFEM for cracks, GAMM 83rd Annual Meeting, Darmstadt, 26-30 March 2012
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(2012): Discretisation error estimation and model adaptivity within 3D multiscale XFEM for cracks, European Solid Mechanics Conference, Graz, 9. - 13. Juli 2012
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(2012): About the Microstructural Effects of Polycrystalline Materials and their Macroscopic Representation at Finite Deformation, GAMM 83rd Annual Meeting, Darmstadt, 26-30 March 2012
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(2012): Computational Homogenisation of Polycrystalline Elastoplastic Microstructures at Finite Deformations, 6th ECCOMAS Conference, Vienna, 10-14 September. 2012
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(2012): Towards an Effective Material Model for Elastoplastic Polycrystalline Materials through Homogenisation, 8th European Solid Mechanics Conference, Graz, 9-13 July 2012
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(2012): Material model identification for DC04 based on the numerical modelling of the polycrystalline microstructure and experimental data, 15th ESAFORM Conference, Erlangen, 14-16 March, 2012
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(2012): 3D vs. 2D Modelling of Cracking and Plasticity in Polycrystalline Materials, 10th World Congress on Computational Mechanics, Sao Paulo, 3-13 July, 2012
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(2012): Scale adaptivity for a multiscale analysis of composite substructures, 6th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2012), Vienna, Austria, 10-14 September 2012
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(2011): Automation of computational homogenization: consistent macro linearization for dissipative microstructures , ECCOMAS Special Interest Conference on Trends and Interests in Computational Mechanics 2011, 12–14 September 2011, Padua
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(2011): Recovery based error estimation for the discretization error of twoscale crack calculations, XFEM, ECCOMAS thematic conference, Cardiff, 29 June - 1 July 2011
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(2011): Twoscale crack calculation with a recovery based error estimation technique for the discretization error in 3D, USNCCM 11th U.S. National Congress on Computational Mechanics, Minneapolis, 25-28 July 2011
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(2011): Recovery based error estimation in 2D and 3D for the extended finite element analysis of cracks, GAMM 82nd Annual Meeting, Graz, 18-21 April 2011
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(2011): Numerical Simulation of Soil-Structure Interactions using Projected Friction Laws, 2nd International Conference on Computational Contact Mechanics (ICCCM), Hannover (Germany), June 15 - June 17, 2011
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(2011): Computational Homogenisation of Polycrystalline Elastoplastic Microstructures at Finite Deformation, 2nd International Conference on Material Modelling, Paris, 31 August - 02 September 2011
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(2011): Towards the Effective Behaviour of Polycrystalline Microstructures at Finite Strains, COMPLAS XI., Barcelona, 07-09 September 2011
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(2011): Towards the Effective Behaviour of Polycrystalline Materials for Sheet Bulk Metal Forming Processes, ESAFORM, Belfast, 27-29 April 2011
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(2011): Computational Homogenisation of Polycrystalline Elastoplastic Microstructures at Finite Deformation, GAMM 82nd Annual Meeting, Graz, 18-21 April 2011
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(2011): Automation of FE2 multi-scale method, 11th US National Congress on Computational Mechanics, Minneapolis, USA, 25.–28.07.2011.
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(2011): Simulation of the Friction Behavior of Rubber Compounds on Real Road Surfaces, 2nd International Conference on Computational Contact Mechanics (ICCCM 2011), Hannover, 15-17 June 2011
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(2011): Adaptive Multi-scale Analysis in Composites, University of Tehran, Iran, December 2011
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(2011): Adaptive Multi-scale Failure Analysis based on Error Estimation, GAMM 82nd Annual Meeting Graz, 18-21 April 2011
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(2011): Adaptive Multi-scale Failure Analysis based on Error Estimation, 3rd ECCOMAS Thematic Conference on the Mechanical Response of Composites, 21-23th September 2011, Hannover, Germany
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(2010): Error estimation within the extended finite element analysis of cracks, GAMM 81st Annual Meeting, Karlsruhe, 22-26 March 2010
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(2010): Error estimation within the extended finite element analysis of cracks, ECCM 4th European Conference on Computational Mechanics, Paris, 16-21 May 2010
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(2010): Numerical Simulation of Soil-Structure Interactions using Projected Friction Laws, 4th European Conference on Computational Mechanics (ECCM), Paris (France), May 16 - May 21, 2010
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(2010): Numerical Modeling of Soil-Structure Interactions using Projected Friction Laws, 9th World Congress on Computational Mechanics (WCCM), Sydney (Australia), July 19 - July 23, 2010
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(2010): Identifikation eines Materialmodells für den DC04 basierend auf der numerischen Modellierung der polykristallinen Mikrostruktur und experimentellen Daten, 1. Workshop Blechmassivumformung, Erlangen, 13-14 October 2010
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(2010): Modelling Metals at Finite Deformation, GAMM 81st Annual Meeting, Karlsruhe, 22-26 March 2010
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(2010): An effective computational contact model for hysteretic friction on rough surfaces, GAMM 81st Annual Meeting, Karlsruhe, 22-26 March 2010
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(2009): Numerical Modeling of Electrical Contacts, 13th Congress on the Mathematics of Finite Elements and Applications (MAFELAB), Brunel (United Kingdom), June 9 - June 12, 2009
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(2009): Computational Modeling of Soil-Structure Interactions, 1st International Conference on Computational Contact Mechanics (ICCCM), Lecce (Italy), September 16 - September 18, 2009
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(2009): Numerical Modeling of Friction Laws fro Soil-Structure Interations , 3rd GACM Colloqium on Computational Mechanics, Hannover (Germany), September 21 - September 23, 2009
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(2008): A Finite Element Algorithm for Electromechanical Contact Problems, 79st Annual Meeting of the International Association of Applied Mathematics and Mechanics (GAMM), Bremen (Germany), March 31 - April 4, 2008
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(2008): Numerical Treatment of Coupled Electro- Thermo- Mechanical Effects in Contact Problems, 8th World Congress on Computational Mechanics (WCCM), Venice (Italy) , June 30 - July 5, 2008
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Full Professor (W3), Head of the Institute of Continuum Mechanics,
Vice President for Research at Leibniz Universität Hannover
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Academic degrees
1988 Habilitation, Mechanics, Leibniz Universität Hannover, Prof. E. Stein 1981 Doctorate, Civil Engineering, Leibniz Universität Hannover, Prof. E. Stein 1976 Dipl.-Ing., Civil-Engineering, Leibniz Universität Hannover, Prof. S. Spierig -
Academic positions
since 2008 Full Professor of Mechanics at the Faculty of Mechanical Engineering, Leibniz Universität Hannover 2005 - 2006 Conjoint Professor at University of Newcastle, Australia 1998 - 2008 Full Professor of Mechanics at the Faculty of Civil Engineering, Leibniz Universität Hannover 1990 - 1998 Full Professor of Mechanics at Technische Universität Darmstadt 1988 - 1988 Visiting Professor at Department of Civil Engineering, University of California, Berkeley, USA 1984 - 1990 Lecturer at Institute for Mechanics and Computational Mechacnics, University of Hannover 1983 - 1984 Visiting Scholar at University of California, Berkeley, USA (with Prof. Robert L. Taylor) 1976 - 1983 Staff Member at Institute of Construction Mechanics, Leibniz Universität Hannover -
Activities
since 2018 Corresponding Member of the Croatian Academy of Sciences and Arts 2016 Re-elected member of the Executive Committee of IACM 2015 - 2016
Chair of the Executive Committee of the Applied Mechanics Division of ASME since 2015 Vice President for Research at Leibniz Universität Hannover since 2015 Member of the Academic Assembly of CISM (International Center of Mechanical Sciences) since 2014 Editor in Chief of „Computational Particle Mechanics“ since 2011 Vice President of IACM (International Association for Computational Mechanics) 2011 - 2013 Vice President of GAMM (Society for Applied Mathematics and Mechanics) since 2011 Member of the Executive Committee of the Applied Mechanics Division of ASME since 2011 Member of the DFG senate committee for Collaborate Research Centres (CRC) since 2010 Charman of International Research Training Group: IRTG1627: Virtual Materials and Structures and their Validation since 2009 Member of the Executive Committee of International Association for Computational Mechanics since 2009 Member of the steering committee of the maximum performance computer center Stuttgart (HLRS) 2008 - 2012 President of GACM (German Association for Computational Mechanics) 2008 - 2010 President of GAMM (Society for Applied Mathematics and Mechanics) 2007 - 2011 Member of the ERC review panel for Starting and Consolidator Grants 2006 - 2015 Member of selection committee of the Alexander von Humboldt Foundation for Humboldt Fellowships (since 2010 chairman) 2004 - 2011 Member of DFG Experts Architecture/Civil Engineering and Medical Technology since 2004 Member of acatech (German Academy of Technology Science) since 2003 Associated editor of “Bauingenieur” since 2003 Member of Academy for Science and Literature Mainz 2001 - 2004 Member of the Advisory Board of the "Transatlantic Science and Humanities Program" of the Alexander von Humboldt Foundation 2001 - 2008 Vice President of GACM since 2001 Editor in Chief von “Computational Mechanics” 1996 - 2001 Member of the DFG senate committee for graduate schools -
Awards
2015 Honorary Doctorate “Dr.-Ing. E.h.” of the TU Darmstadt, Germany 2013 Honorary Doctorate “Dr. h. c. “ of the ENS Cachan, Paris, France 2013 Honorary Doctorate “Dr. h. c. “ of the University of Technology Poznan 2013 “Zienkiewicz Medal” of the Polish Association for Computational Mechanics (PACM) 2011 Grand Prize of the Japan Society for Computational Engineering and Science (JSCES) 2011 “Russell Severance Springer Professor“, Visiting Chair at ME Department, UC Berkeley 2010 “IACM Award” (IACM) 2008 “Euler Medal” of ECCOMAS 2006
Computational Mechanics Award (IACM) 2004
“Highly Commended Award” for paper in Engineering Computations 2003 - 2004
ARC Linkage Professorship at University of Newcastle, NSW, Australia 2002
Fellow of the International Association for Computational Mechanics (IACM) 2002
“Literati Award for Excellence” to the best paper 2002 in Engineering Computations 1981
“Christian-Kuhlemann-Scholarship” for best PhD-thesis, University of Hannover -
Academic memberships
since 2018 Corresponding Member of the Croatian Academy of Sciences and Arts since 2004 Member of the National Academy of Engineering, “acatech”, Gemany since 2004 Member of the “Academy of Science and Literature”, Mainz, Germany since 1999 Member of Braunschweigische Wissenschaftliche Gesellschaft, Braunschweig, Germany -
Books
- Multiscale Modeling of Heterogenous Structures
(J. Soric, P. Wriggers, O. Allix)
Lecture Notes in Applied and Computational Mechanics 86
Springer Verlag
2018, 381 Pages
ISBN 3-319-65463-8
- Biomedical Technology - Modeling, Experiments and Simulation
(P. Wriggers, Th. Lenarz)
Lecture Notes in Applied and Computational Mechanics 84
Springer Verlag
2018, 362 Pages
ISBN 3-319-59547-4
- Advanced Finite Element Technologies
(J. Schröder, P. Wriggers)
CISM International Centre for Mechanical Sciences 566
Springer Verlag
2016, 236 Pages
ISBN 3-319-31923-0
- Automation of Finite Element Methods
(J. Korelc, P. Wriggers)
Springer International Publishing Switzerland
2016, 346 Pages
ISBN 3-319-39003-1
- Nonlinear Finite Element Methods
Springer-Verlag Berlin/Heidelberg
2008, 559 Pages
ISBN 3-540-71000-4
- Nichtlineare Finite-Element-Methoden
Springer-Verlag Berlin/Heidelberg
2001. XI, 495 S. 250 Abb. Brosch.
ISBN 3-540-67747-X
- New Developments in Contact Problems
Springer-Verlag Berlin/Heidelberg
1999. VII, 246 pp. 97 figs. Softcover
ISBN 3-211-83154-1
- Computational Contact Mechanics
Wiley-Verlag
July 2002, 464 Pages
ISBN: 0-471-49680-4
- Error-controlled Adaptive Finite Elements in Solid Mechanics
(Erwin Stein (Editor), Ekkehard Ramm, E. Rank, R. Rannacher, K. Schweizerhof, E. Stein, W. Wendland, G. Wittum, Peter Wriggers, Walter Wunderlich) Wiley-Verlag
November 2002, 422 Pages ISBN: 0-471-49650-2
- Introduction to Computational Micromechanics
(Zohdi, T.I., Wriggers, Peter)
Springer-Verlag Berlin/Heidelberg
2004, 196 Pages
ISBN: 3-540-22820-9
- Technische Mechanik, Band 4
Hydromechanik, Elemente der Höheren Mechanik, Numerische Methoden
Springer-Verlag Berlin/Heidelberg
3. Aufl. 1999. XI, 434 S. 213 Abb. Brosch.
ISBN 3-540-65205-1
- Formeln und Aufgaben zur Technischen Mechanik 1-3
Springer-Verlag Berlin/Heidelberg
- Multiscale Modeling of Heterogenous Structures
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Journals
- Editor-in-Chief:
- Associated Editor
International Journal for Numerical methods in Engineering (1998-2001)
Der Bauingenieur (since 2003)
- Member of the Editorial Board:
- Since 1990 Engineering Computations
- Since 1990 International Journal for Numerical Methods in Engineering
- Since 1994 International Journal for Engineering Analysis and Design
- Since 1995 Archives of Computational Methods in Engineering
- Since 1997 Computers & Structures
- Since 1997 International Journal of Solids and Structures
- Since 1997 International Journal of Forming Processes
- Since 1998 Engineering with Computers
- Since 2000 Computer Methods in Applied Mechanics and Engineering
- Since 2000 International Journal for Computational Civil and Structural Engineering
- Since 2000 Computational Engineering Science
- Since 2002 Journal of Computational Biomechanics
- Since 2003 International Journal of Computational Methods
- Since 2003 Latin American Journal of Solids and Structures
- Since 2003 International Journal for Multiscale Computational Engineering
- Editor-in-Chief: