Membrane mode enhanced cohesive zone element

verfasst von
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.

Organisationseinheit(en)
Institut für Kontinuumsmechanik
Externe Organisation(en)
Technische Universität Dresden
Typ
Artikel
Journal
Engineering Computations
Band
39
Seiten
722-743
Anzahl der Seiten
22
ISSN
0264-4401
Publikationsdatum
08.02.2022
Publikationsstatus
Veröffentlicht
ASJC Scopus Sachgebiete
Software, Ingenieurwesen (insg.), Angewandte Informatik, Theoretische Informatik und Mathematik
Elektronische Version(en)
https://doi.org/10.1108/EC-08-2020-0489 (Zugang: Geschlossen)
 

Details im Forschungsportal „Research@Leibniz University“