Dynamic analysis for circular inclusions of arbitrary positions near interfacial crack impacted by SH-wave in half-space
- 作者：Hui Qi ; Jie Yang ; yangjie04024218@163.com
- 关键词：Circular inclusion ; Interfacial crack ; Green's function ; Dynamic stress concentration factor (DSCF)
- 刊名：European Journal of Mechanics - A/Solids
- 出版年：2012
- 期刊代码：56_09977538
- 类别：et
- 出版时间：November-December, 2012
- 卷：36
- 期：Complete
- 页码：18-24
- 文件大小：858 K
摘要
The diffraction of time harmonic anti-plane shear waves by arbitrary positions of inclusions and a finite length interfacial crack embedded in an elastic half-space is considered by using Green's function and complex function methods. With the aid of image method, the expression of scattering wave as well as the Green's function are constructed. A series of Fredholm integral equations containing unknown forces at the linking sections are obtained via the interface 鈥渃onjunction鈥?technique. The integral equations are reduced to a system of linear algebraic equations by using the effective truncation. Steady-state responses for some parameters are calculated and discussed. Numerical results demonstrate that the geometry under consideration is indeed capable of causing a localized high concentration of wave energy underground. Graphical results for the dynamic stress concentration factors are presented.