Scattering of SH-wave by cracks originating at an elliptic hole and dynamic stress intensity factor

被引：2
|
作者：
Liu Dian-kui
Chen Zhi-gang
机构：
[1] Harbin Engineering University,School of Civil Engineering
[2] Jinan University Guangzhou,Department of Civil Engineering
来源：
Applied Mathematics and Mechanics | 2004年 / 25卷 / 9期
关键词：
crack originating at elliptical hole; SH-wave scattering; Green's function; dynamic stress intensity factor (DSIF); complex function; integral equation; O347.3; 74J20; 74R10;
D O I：
10.1007/BF02438354
中图分类号：
学科分类号：
摘要：
The method of complex function and the method of Green's function are used to investigate the problem of SH-wave scattering by radial cracks of any limited length along the radius originating at the boundary of an elliptical hole, and the solution of dynamic stress intensity factor at the crack tip was given. A Green's function was constructed for the problem, which is a basic solution of displacement field for an elastic half space containing a half elliptical gap impacted by anti-plane harmonic linear source force at any point of its horizontal boundary. With division of a crack technique, a series of integral equations can be established on the conditions of continuity and the solution of dynamic stress intensity factor can be obtained. The influence of an elliptical hole on the dynamic stress intensity factor at the crack tip was discussed.
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页码：1047 / 1056
页数：9
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