An improved axisymmetric wilson nonconforming finite element method for stress analysis

被引：0
|
作者：
Zhang Wu
C. S. Desai
Y. K. Yong
机构：
[1] Zhejiang University,Dept. of Civil Engineering
[2] University of Arizona,Dept. of Civil Engineering and Engineering Mechanics
[3] Rutgers University,Dept. of Civil and Environmental Engineering
来源：
Journal of Zhejiang University-SCIENCE A | 2000年 / 1卷 / 3期
关键词：
nonconforming finite element; axisymmetric Wilson element; patch test condition; convergence; spurious shear stress; A; O39; TB12;
D O I：
10.1631/BF02910638
中图分类号：
学科分类号：
摘要：
The Wilson and Taylor elements Q6 and QM6, the representative nonconforming finite element method (FEM), have been successfully developed and implemented in the finite element code SAP for improved displacement and stress analysis. This paper formulates an improved convergent nonconforming axisymmetric element AQM6 over the corresponding axisymmetric Q6 and QM6 elements. The proposed modified nonconforming axisymmetric element AQM6 satisfies the engineering patch test condition for convergence, and also meets the condition for suppression of spurious shear stress by using a special remedying procedure. The numerical test results are in agreement with the element performance.
引用
收藏
页码：284 / 290
页数：6
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