Kinked Cracks at the Interface of Two Bonded Anisotropic Elastic Media under Antiplane Shear -Generalized Stress Intensity Factors at the Kinked Crack Vertex-

摘要

The kinked crack, which is reflecting back into the first medium at the interface of two bonded anisotropic media under antiplane shear loading, is analyzed by using the singular point method of complex potential functions. The crack is modeled by means of continuous distributions of dislocations, and a system of singular integral equations with generalized Cauchy kernels is obtained. The vertex of the kinked crack has the different stress singularity from that of the tips of the kinked crack. Taking account of this stress singularity of the vertex as well as the stress singularity of the kinked crack tips, the singular integral equations are solved numerically. Numerical results of the generalized stress intensity factors of the vertex of the kinked crack are shown in figures, and the influences of anisotropy of the media, the kinked crack angle, and the ratio of crack length of the kinked crack are clarified.