Study on effect of time parameters of laser shock peening on residual stresses using FE simulation

被引：0
作者：
Ju Hee Kim
Yun Jae Kim
Jong Woo Lee
Sam Hyeon Yoo
机构：
[1] Korea Military Academy,Department of Mechanical Engineering
[2] Korea University,Department of Mechanical Engineering
来源：
Journal of Mechanical Science and Technology | 2014年 / 28卷
关键词：
Ablative layer; Dynamic yield strength; FEA; Finite element analysis; Infinite element; LSP; Laser shock peening; Plasma; SP; Shot peening; Time parameter; Water tamping layer;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Laser shock peening (LSP) is the newest and most innovative surface treatment technique. LSP residual stress distribution is affected by many parameters. Of them, the parameters are main factors that determine the convergence of finite element analysis (FEA) and characteristic of pressure pulse of laser system. The parameters, related to the convergence of FE simulation, are stability limit time for the stable convergence of results, and solution time for dynamic analysis. The other parameters, related to characteristics of pressure pulse of laser system, are pressure pulse duration time and laser pulse interval time for multiple LSP. In the present work, we have conducted to confirm the influence of time parameters of LSP system on residual stress results using FEA, and we have also predicted optimized range of time parameters.
引用
收藏
页码：1803 / 1810
页数：7
相关论文
共 38 条
  • [1] Ding K(2006)Simulation of multiple laser shock peening of a 35CD4 steel alloy J.of Materials Processing Technology 178 162-169
  • [2] Ye L(2010)Improving the residual stress characteristics of the metal surface by ND: YAG laser shock peening J. of the Korean Society of Machine Tool Engineering 19 539-547
  • [3] Yang S Y(2011)A new effective method to estimate the effect of laser shock peening Int. J. of Impact Engineering 38 322-329
  • [4] Choi S D(2008)Influence of laser peening parameters on residual stress field of 304 stainless steel J. of Pressure Vessel Technology 130 1-8
  • [5] Jun J M(2008)Geometrical effects on residual stresses in 7075-T7451 aluminum alloy rods subject to laser shock peening J. of Materials Processing Technology 201 303-309
  • [6] Gong B C(2009)Residual stress prediction in LSP surface treatment by using FEM KSME-A 33 776-772
  • [7] Wu S(2010)Sensitivity analyses of the finite element parameters of laser shock peening for improving fatigue life of metallic components KSME-A 34 1821-1828
  • [8] Huang C(1996)Laser shock processing of aluminum alloys. Application to high cycle fatigue behaviour Materials Science and Engineering 210 102-113
  • [9] Wang X(1991)Residual stresses induced by laser-shocks J. de Physique IV 1 487-581
  • [10] Song H(1995)Laser shock processing: a review of the physics and applications Optical and Quantum Elec tronics 27 1213-1229
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