基于拉普拉斯逆变换正则化公式的裂纹对sh波传播影响研究

2018 XXIIIrd International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED) Pub Date : 2018-09-01 DOI:10.1109/DIPED.2018.8543262

T. Solyar

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引用次数: 0

摘要

提出了一种测定弹性物体在面外变形作用下裂纹系统附近产生的瞬态和定常动应力的方法。该方法基于积分拉普拉斯变换、修正的普鲁德尼科夫模型的反演、边界积分方程和相应准则函数的最小化方法。建立了单裂纹和裂纹系统在振荡达到稳态阶段应力强度因子变化的典型特征。

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Investigation of the Crack’s Effect on SH-Waves Propagation Based on the Regularized Formula of Inverse Laplace Transform

A method for determining transient and set dynamic stresses that arise near the crack system in elastic bodies under out-of-plane deformation is developed. The method is based on an integral Laplace transform, modified Prudnikov model for its inversion, methods of boundary integral equations and minimization of corresponding criterion functions. Typical peculiarities of the stress intensity factors variation for one crack and a system of cracks at the stage of achieving by oscillations the steady-state condition are established.

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来源期刊

2018 XXIIIrd International Seminar/Workshop on Direct and Inverse Problems of Electromagnetic and Acoustic Wave Theory (DIPED)

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