摘要
分区混合有限无法(简称混合法)是解决复杂工程结构裂缝问题的有效方法之一.目前主要用于均质材料中的裂缝问题.本文将混合法推广应用到界面裂缝之中,不仅扩大了混合法的应用范围,也较满意地解决了界面裂缝的复杂计算问题.
The sub-region mixed finite element method is an efficient method for crack problem of complicated engineering structures. Up to the present this method is only applied to solve the crack problem in honogeneous material This paper extended sub-region mixed method to calculate the stress intensify factors along the interface crack in bimaterial.A three-point bending beam with an edge crack is computed.The numerical results are compared with experimental data by Laser photograph and the comparision of which shows good agreement.
基金
水电部科学基金资助课题
关键词
有限元
界面
裂缝
应力强度因子
sub-region Mixed Finite Element Method
Interface Crack
Stress Intensity Factors
