期刊名称：Journal of Computational Science and Technology
电子版ISSN：1881-6894
出版年度：2009
卷号：3
期号：1
页码：212-223
DOI：10.1299/jcst.3.212
出版社：The Japan Society of Mechanical Engineers
摘要：In this paper, stress intensity factors for a three dimensional planar interfacial crack are considered on the idea of the body force method. The formulation leads to a system of singular integral equation, whose unknowns are three types of crack opening displacements. The unknown body force densities are approximated by the products of the fundamental density functions and power series; here, the fundamental density functions are chosen to express singular stress fields due to a two-dimensional interface crack exactly. The calculation shows that the present method gives rapidly converging numerical solutions. It is found that the stress intensity factors KI and KII are determined by bimaterials constant ε alone, independent of elastic modulus ratio and Poisson's ratio.
关键词：Elasticity;Stress Intensity Factor;Body Force Method;Interface Crack;Fracture Mechanics;Composite Material;Singular Integral Equation
