A finite deformation brick element with inhomogeneous mode enhancement

authored by
D. S. Mueller-Hoeppe, Stefan Löhnert, Peter Wriggers
Abstract

In this paper we describe a new enhanced assumed strain finite element for finite deformations. The element is based on the split of the deformation of an element into a homogeneous and inhomogeneous part. The enhancement is applied to the inhomogeneous part only. For the homogeneous part a compressible Neo-Hooke material is used, while for the inhomogeneous part linear elasticity is assumed. In several examples it is shown that the element is locking and hourglassing free as well as insensitive to initial element distortion.

Organisation(s)
Institute of Continuum Mechanics
Type
Article
Journal
International Journal for Numerical Methods in Engineering
Volume
78
Pages
1164-1187
No. of pages
24
ISSN
0029-5981
Publication date
23.12.2008
Publication status
Published
Peer reviewed
Yes
ASJC Scopus subject areas
Numerical Analysis, Engineering(all), Applied Mathematics
Electronic version(s)
https://doi.org/10.1002/nme.2523 (Access: Unknown)
 

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