Bulk material models in Cohesive Zone Elements for simulation of joining zones

authored by: Felix Töller, Stefan Löhnert, Peter Wriggers
Abstract: Modelling of thin joining zones is one application of Cohesive Zone Elements (CZE). It is shown that Traction Separation Laws (TSLs) used as constitutive models in most CZEs that can be found in literature cannot fully capture all damage causing deformation modes induced by forming of hybrid components. In this contribution we present an approach to overcome this deficiency by using bulk material models within a Cohesive Zone Element. Numerical examples demonstrate the excellent properties of the method by comparing the new formulation with volumetric modelling of a joining zone.
Organisation(s): Institute of Continuum Mechanics
External Organisation(s): Technische Universität Dresden
Type: Article
Journal: Finite Elements in Analysis and Design
Volume: 164
Pages: 42-54
No. of pages: 13
ISSN: 0168-874X
Publication date: 15.10.2019
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Analysis, General Engineering, Computer Graphics and Computer-Aided Design, Applied Mathematics
Electronic version(s): https://doi.org/10.1016/j.finel.2018.12.002 (Access: Open)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{f3107dd28ac54209a4aa5549b61fc5f0,
title = "Bulk material models in Cohesive Zone Elements for simulation of joining zones",
abstract = "Modelling of thin joining zones is one application of Cohesive Zone Elements (CZE). It is shown that Traction Separation Laws (TSLs) used as constitutive models in most CZEs that can be found in literature cannot fully capture all damage causing deformation modes induced by forming of hybrid components. In this contribution we present an approach to overcome this deficiency by using bulk material models within a Cohesive Zone Element. Numerical examples demonstrate the excellent properties of the method by comparing the new formulation with volumetric modelling of a joining zone.",
keywords = "Bulk material models, Cohesive Zone Elements, Internal Thickness Extrapolation (InTEx), Joining zone, Tailored Forming, Traction Separation Laws",
author = "Felix T{\"o}ller and Stefan L{\"o}hnert and Peter Wriggers",
note = "Funding information: The results presented in this paper were obtained within the Collaborative Research Center 1153 “Process chain to produce hybrid high performance components by Tailored Forming” in the subproject C4. The authors would like to thank the German Research Foundation (DFG) for the financial and organisational support of this project.",
year = "2019",
month = oct,
day = "15",
doi = "10.1016/j.finel.2018.12.002",
language = "English",
volume = "164",
pages = "42--54",
journal = "Finite Elements in Analysis and Design",
issn = "0168-874X",
publisher = "Elsevier",
}