爆炸与冲击2012，Vol.32Issue(5)：463-469,7.
SH波入射时半空间界面裂纹与圆形衬砌的相互作用
Scattering of SH-wave by the circular lining with an interface crack in a bi-material half-space
齐辉 1张根昌 1陈冬妮 1郭晶 1赵春香1
作者信息
- 1. 哈尔滨工程大学航天与建筑工程学院,黑龙江哈尔滨150001
- 折叠
摘要
Abstract
Based on the complex variable function method and the Green's function method, the scattering of SH-wave by a bi-material interface crack and a circular lining near a bi-material interface in half-space was explored and the corresponding dynamic stress concentration at the circular lining interface was investigated. Firstly, the expression of the scattering wave was proposed which satisfied the free boundary conditions, and then the Green's function was constructed. Secondly, the crack was made out by the crack-division technique, and a series of algebraic equations for determining the unknown forces were developed from the continuity conditions. Finally, some examples for the dynamic stress concentration factors of the circular elastic lining were given, and the effects of the interface crack, the incident wave and the free boundary on the dynamic stress concentration factors at the edge of the circular elastic inclusion were analyzed. The calculated results show that the existence of the interface crack has great effects on the dynamic stress concentration factors at the circular lining interface.关键词
固体力学/动应力集中系数/Green函数/双向介质半空间/圆形衬砌/裂纹/SH波散射Key words
solid mechanics/ dynamic stress concentration/ Green's function/ bi-material half-space/circular lining/ crack/ scattering of SH-wave分类
数理科学引用本文复制引用
齐辉,张根昌,陈冬妮,郭晶,赵春香..SH波入射时半空间界面裂纹与圆形衬砌的相互作用[J].爆炸与冲击,2012,32(5):463-469,7.
