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Smart element method II. An element based on the finite Eshelby tensor
Author(s) -
Wang Gang,
Liu Xiaohu,
Li Shaofan,
Sitar Nicholas
Publication year - 2005
Publication title -
international journal for numerical methods in engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.421
H-Index - 168
eISSN - 1097-0207
pISSN - 0029-5981
DOI - 10.1002/nme.1398
Subject(s) - homogenization (climate) , finite element method , tensor (intrinsic definition) , mathematics , mixed finite element method , robustness (evolution) , domain (mathematical analysis) , von neumann architecture , extended finite element method , mathematical analysis , computer science , geometry , pure mathematics , structural engineering , engineering , biodiversity , ecology , biochemistry , chemistry , gene , biology
In this study, we apply the newly derived finite Eshelby tensor in a variational multiscale formulation to construct a smart element through a more accurate homogenization procedure. The so‐called Neumann–Eshelby tensor for an inclusion in a finite domain is used in the fine scale feedback procedure to take into account the interactions among different scales and elements. Numerical experiments have been conducted to compare the performance and robustness of the new element to earlier formulations. The results showed that the smart element constructed via the Neumann–Eshelby tensor of a finite domain provides better numerical accuracy than that constructed via the Eshelby tensor of an infinite domain. Moreover, it can relieve volumetric locking. Copyright © 2005 John Wiley & Sons, Ltd.