Study on Simulation of Residual Stress Distribution in Microscale Laser Shock Peening Based on Crystal Orientation
Microscale laser shock peening (μLSP) can generate beneficial compressive stress distribution in the targets to improve fatigue life of the material. The beam spot size used in μLSP is of the same order as grain size in many materials, the deformation is induced in only a few grains so that it is necessary to treat material as being anisotropic and heterogeneous. The influence of crystal orientation is investigated using single crystal plasticity in finite element analysis. The influence of laser processing parameters on residual stress distribution were discussed with the simulations of μLSP based on (001) orientation, and crystal plasticity theory was adopted to explain the mechanism of influence on residual stress distribution, which will provide a valuable guidance for further study of controlled μLSP.
Jianzhong Zhou Yujie Fan Wei Wang Denghui Wei Jinrong Fan Wei Zhu Bin Gao
School of Mechanical Engineering, Jiangsu University, Zhenjiang 212013, China
国际会议
桂林
英文
1-6
2010-11-16（万方平台首次上网日期，不代表论文的发表时间）