ERROR INDICATORS FOR MIXED FINITE-ELEMENTS IN 2-DIMENSIONAL LINEAR ELASTICITY

被引：27

作者：

BRAESS, D

KLAAS, O

NIEKAMP, R

STEIN, E

WOBSCHAL, F

机构：

[1] UNIV HANNOVER,INST BAUMECH & NUMER MECH,D-30167 HANNOVER,GERMANY

[2] RUHR UNIV BOCHUM,INST MATH,D-44780 BOCHUM,GERMANY

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 1995年 / 127卷 / 1-4期

关键词：

Algorithms - Anisotropy - Elasticity - Error detection - Finite element method - Geotextiles - Stresses;

D O I：

10.1016/0045-7825(95)00841-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We establish a posteriori error indicators for mixed finite elements in plane elasticity. The error estimators refer to residuals of the strong equations and to jumps of the displacements on interelement boundaries. For the BDM elements of lowest order, the error indicators are computed with displacement fields which are obtained by a postprocessing procedure. Numerical examples show that adaptive mesh refinements based on these estimators lead to very efficient algorithms.

引用

页码：345 / 356

页数：12

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