Stress field near interface crack tip of double dissimilar orthotropic composite materials  

作　　者：李俊林 张少琴 杨维阳 

机构地区：[1]School of Applied Science,Taiyuan University of Science and Technology, Taiyuan 030024,P.R.China

出　　处：《Applied Mathematics and Mechanics(English Edition)》2008年第8期1045-1051,共7页应用数学和力学（英文版）

基　　金：the Natural Science Foundation of Shanxi Province(No.2007011008)

摘　　要：In this paper, double dissimilar orthotropic composite materials interfacial crack is studied by constructing new stress functions and employing the method of composite material complex. When the characteristic equations＇ discriminants △1 〉 0 and △2 〉0, the theoretical formula of the stress field and the displacement field near the mode I interface crack tip are derived, indicating that there is no oscillation and interembedding between the interfaces of the crack.In this paper, double dissimilar orthotropic composite materials interfacial crack is studied by constructing new stress functions and employing the method of composite material complex. When the characteristic equations＇ discriminants △1 〉 0 and △2 〉0, the theoretical formula of the stress field and the displacement field near the mode I interface crack tip are derived, indicating that there is no oscillation and interembedding between the interfaces of the crack.

关 键 词：ORTHOTROPIC interface crack crack tip stress field 

分 类 号：O346.1[理学—固体力学]