Journal
INTERNATIONAL JOURNAL FOR NUMERICAL METHODS IN ENGINEERING
Volume 78, Issue 10, Pages 1164-1187Publisher
WILEY
DOI: 10.1002/nme.2523
Keywords
enhanced strain; finite element technology; finite deformation; locking; hourglassing
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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. Copyright (C) 2008 John Wiley & Sons, Ltd.
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