摘要
建议了一种较为精确的边界应力求解方法，并用于改进Ｚｉｅｎｋｉｅｗｉｃｚ－Ｚｈｕ（Ｚ２）应力恢复过程。改进过程增加的计算量不大，但可有效地改善后验误差估计精度。ｈ型自适应有限元分析结果表明。
A method is suggested for boundary stress resolution, which is used to improve the Zienkiewicz Zhu(Z 2) stress recovery procedures. The improved procedures can effectively enhance the precision of a posteriori error estimator with less additional computational effort. Results of h daptive finite element analysis show that the improved procedures can make the calculation of optional mesh easier.
关键词
自适应
有限元
应力恢复过程
后验误差估计
adaptive finite element method
Z 2 stress recovery procedures
a posteriori error estimator
h adaptivity
