Solution of analytical-variational method on bi-material interface crack and its comparison with experiment

被引：0
作者：
Qingchun Meng
Dong-Joo Lee
Xing Zhang
机构：
[1] Beijing University of Acronautics and Astronautics,Dept of Mechanical Engineering
[2] Yeungnam University,undefined
来源：
KSME International Journal | 1997年 / 11卷
关键词：
Interface Crack; Analytical Variational Method; Stress Intensity Factor; Energy Release Rate; Crack Opening Displacement; Bi-Material Strip;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
An analytical method is developed to describe the fields of stress and displacement in a bi material strip with an edge interfacial crack. All of the basic governing equations, boundary conditions on crack surfaces, and conditions of continuity along the interface are satisfied by the eigen-function expansion method. The other boundary conditions will be satisfied by the generalized variational principle. Good convergence of generalized stress intensity factors is obtained, and the values of crack opening displacement and energy release rate obtained by this method are close to the experimental results. Some problems regarding oscillatory singularity, contact zone and energy release rate are discussed. Finally, the effects of modulus, thickness and crack length to mode mixity are presented.
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页码：521 / 529
页数：8
相关论文
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