Membrane mode enhanced cohesive zone element

authored by: Felix Töller, Stefan Löhnert, Peter Wriggers
Abstract: Purpose: In certain cases, traction–separation laws do not reflect the behaviour sufficiently so that thin volumetric elements, Internal Thickness Extrapolation formulations, bulk material projections or various other approaches are applied. All of them have disadvantages in the formulation or practical application. Design/methodology/approach: Damage within thin layers is often modelled using at cohesive zone elements (CZE). The constitutive behaviour of cohesive zone elements is usually described by traction–seperation laws (TSLs) that consider the (traction separation) relation in normal opening and tangential shearing direction. Here, the deformation (separation) as well as the reaction (traction) are vectorial quantities. Findings: In this contribution, a CZE is presented that includes damage from membrane modes. Originality/value: Membrane mode-related damaging effects that can be seen in physical tests that could not be simulated with standard CZEs are well captured by membrane mode–enhanced cohesive zone elements.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): Technische Universität Dresden
Type: Article
Journal: Engineering Computations
Volume: 39
Pages: 722-743
No. of pages: 22
ISSN: 0264-4401
Publication date: 08.02.2022
Publication status: Published
ASJC Scopus subject areas: Software, Engineering(all), Computer Science Applications, Computational Theory and Mathematics
Electronic version(s): https://doi.org/10.1108/EC-08-2020-0489 (Access: Closed)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{a0038f42393d48d2b150a09feda9fce8,
title = "Membrane mode enhanced cohesive zone element",
abstract = "Purpose: In certain cases, traction–separation laws do not reflect the behaviour sufficiently so that thin volumetric elements, Internal Thickness Extrapolation formulations, bulk material projections or various other approaches are applied. All of them have disadvantages in the formulation or practical application. Design/methodology/approach: Damage within thin layers is often modelled using at cohesive zone elements (CZE). The constitutive behaviour of cohesive zone elements is usually described by traction–seperation laws (TSLs) that consider the (traction separation) relation in normal opening and tangential shearing direction. Here, the deformation (separation) as well as the reaction (traction) are vectorial quantities. Findings: In this contribution, a CZE is presented that includes damage from membrane modes. Originality/value: Membrane mode-related damaging effects that can be seen in physical tests that could not be simulated with standard CZEs are well captured by membrane mode–enhanced cohesive zone elements.",
keywords = "Cohesive Zone Element, Continuum Damage Mechanics, Internal Thickness Extrapolation (InTEx), Joining Zone, Membrane Mode Enhanced Cohesive Zone Element, Tailored Forming",
author = "Felix T{\"o}ller and Stefan L{\"o}hnert and Peter Wriggers",
note = "Funding Information: Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - CRC 1153, subproject C4–252662854.",
year = "2022",
month = feb,
day = "8",
doi = "10.1108/EC-08-2020-0489",
language = "English",
volume = "39",
pages = "722--743",
journal = "Engineering Computations",
issn = "0264-4401",
publisher = "Emerald Group Publishing Ltd.",
number = "2",
}