Abstract

In this paper, we develop a numerical model that allows predicting the effect of laser shock processing of materials on the occurrence of new cracks, as well as on the propagation pattern of existing cracks. Linear cracks and so-called V-shaped cracks are studied. The fields of residual stresses arising during laser shock processing are determined. The optimal modes of laser shock processing in terms of the maximal deceleration of the propagation velocity of the cracks are revealed. The results obtained are in good agreement with the experimental data.

中文翻译：

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使用激光冲击处理增强材料的抗裂性

摘要

在本文中，我们建立了一个数值模型，该模型可以预测材料的激光冲击处理对新裂纹的发生以及对现有裂纹的扩展方式的影响。研究了线性裂纹和所谓的V形裂纹。确定在激光冲击处理期间产生的残余应力的场。根据裂纹传播速度的最大减速度，揭示了最佳的激光冲击处理方式。所得结果与实验数据吻合良好。