Enhancement of Material Crack Resistance Using Laser Shock Processing

被引：4

作者：

Sakhvadze, G. Zh. ^{[1
]}

机构：

[1] Russian Acad Sci, Blagonravov Inst Mech Engn, Moscow 101990, Russia

来源：

JOURNAL OF MACHINERY MANUFACTURE AND RELIABILITY | 2020年 / 49卷 / 04期

关键词：

laser shock processing; finite element method; residual stresses; stress intensity factor; crack growth rate; crack resistance; RESIDUAL-STRESSES;

D O I：

10.3103/S1052618820040123

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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.

引用

页码：335 / 340

页数：6

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