A numerical approach for solving of the 2D elastodynamic waves scattering problem by a finite width planar soft/hard strip is considered. The lower face of the strip is perfectly bonded to the matrix and the upper face is modeled as an interface crack. Using Betti's theorem the mixed boundary value problem is reduced to the hypersingular and weakly singular systems of integral equations. An efficient numerical collocation method for the solution of this problem is developed and its numerical results are presented.

中文翻译：

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软/硬条的二维弹性动力学散射

考虑了一种通过有限宽度平面软/硬条解决二维弹性动力波散射问题的数值方法。条带的下表面与基体完美结合，上表面建模为界面裂纹。使用 Betti 定理，混合边值问题被简化为积分方程的超奇异和弱奇异系统。开发了一种解决该问题的有效数值配置方法，并给出了其数值结果。