A high-performance element for the analysis of 2D elastoplastic continua

被引：28
作者：
Bilotta, A. [1 ]
Casciaro, R. [1 ]
机构：
[1] Univ Calabria, Dipartimento Strutture, I-87030 Arcavacata Di Rende, CS, Italy
来源：
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2007年 / 196卷 / 4-6期
关键词：
finite element; assumed stress; plasticity;
D O I：
10.1016/j.cma.2006.06.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The paper presents a four node element for the analysis of 2D continua described by elastic-perfectly plastic von Mises laws. Its formulation is based on the assumed stress approach which has been widely tested in the elastic field. The elastoplastic formulation of the element is obtained by enriching its variational basis with the weak enforcement of the plastic loading/unloading conditions. In this way the elastoplastic problem is formulated with respect to the stress parameters of the element consistently with the weak statement of the compatibility condition. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：818 / 828
页数：11
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