刘贵杰,杨胜瑞

• 1:中国海洋大学工程学院机电工程系

摘要(Abstract)：

通过建立ANSYS/LS-DYNA有限元仿真模型,对激光冲击处理后靶材的残余应力场进行了有效的预测,对隐式分析前后模型的表面形貌进行了分析,对不同激光冲击参数下激光冲击强化产生的残余应力洞进行了分析。结果表明,增加峰值压力、冲击次数和光斑直径虽然可以改善激光冲击强化效果,增加最大残余应力,但同时也会增大残余应力洞现象,使用方形光斑可以有效减弱残余应力洞现象。

关键词(KeyWords)： 激光冲击强化;有限元仿真;残余应力洞;Q345钢

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金重点项目(1600-911221610)

作者(Author): 刘贵杰,杨胜瑞

DOI: 10.13289/j.issn.1009-6264.2015.10.039

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