FINITE-ELEMENT ANALYSIS OF NONLINEAR CREEPING FLOWS

被引：27
|
作者：
LOULA, AFD
GUERREIRO, JNC
机构：
[1] Laboratório Nacional de Computação Cientifica-LNCC, CNPq
来源：
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1990年 / 79卷 / 01期
关键词：
20;
D O I：
10.1016/0045-7825(90)90096-5
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Steady-state creep problems with monotone constitutive laws are studied. Finite element approximations are constructed based on mixed Petrov-Galerkin formulations for constrained problems. Stability, convergence and a priori error estimates are proved for discontinuous stress and continuous velocity interpolations of the same order. Numerical results are presented confirming the rates of convergence predicted in the analysis and the good performance of this formulation. © 1990.
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页码：87 / 109
页数：23
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