江苏大学学报（自然科学版）2011，Vol.32Issue(2)：190-194,5.DOI:10.3969/j.issn.1671-7775.2011.02.015
几何形状对激光冲击波诱发残余应力场的影响
Geometrical effects on residual stress in TC4 titanium alloy subject to laser shock processing
摘要
Abstract
In order to improve the fatigue strength of TC4, Nd:Glass pulse laser was used to treat the surface of infundibulate specimen X-ray stress analyzer was adopted to test the residual stress distribution of shocked area, and the process of laser shock on different geometrical specimen with different ratio (η)between the diameter of specimen and laser spot were simulated by ANSYS. The results show that the simulation is in good agreement with experiments. The infundibnlate specimen can be simplified to cylindrical specimen. Geometrical effects on residual stress mainly act on X direction and Z direction and almost no effects on Y direction. The different η's mainly affect residual stress distribution along the indepth direction and the circumferential direction, but very few on longitudinal direction.关键词
激光冲击强化/残余应力场/有限元分析/TCA钛合金/几何形状分类
信息技术与安全科学引用本文复制引用
陈瑞芳,陈玉晓,花银群..几何形状对激光冲击波诱发残余应力场的影响[J].江苏大学学报（自然科学版）,2011,32(2):190-194,5.基金项目
国家自然科学基金资助项目(50451004) （50451004）
