Numerical Simulation on Residual Stress Field of Flat-Topped Laser Oblique Shocking of Ni-Based Alloy GH4169

被引：9
|
作者：
Qu, Xiangming [1 ]
Zhang, Yongkang [1 ]
Liu, Jun [1 ]
机构：
[1] Guangdong Univ Technol, Sch Electromech Engn, Guangzhou 510006, Peoples R China
来源：
ADVANCES IN MATERIALS SCIENCE AND ENGINEERING | 2020年 / 2020卷
基金：
中国国家自然科学基金;
关键词：
FINITE-ELEMENT-ANALYSIS; THERMAL RELAXATION;
D O I：
10.1155/2020/8824824
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper is based on laser shock peening (LSP) system with a flat-topped beam, using robot simulation software to determine the oblique shock angle of different areas of a certain turbine disk mortise. Three-dimensional finite element analysis was used to study residual stress field of Ni-based alloy GH4169 under flat-topped laser oblique shocking. The effects of different laser energy and different shocking number on residual stress field of Ni-based alloy GH4169 of LSP were studied. Three-dimensional finite element analysis used super-Gaussian beam distribution to construct spatial distribution model of shock wave induced by LSP. The simulation results were in good agreement with the experimental results. The research results will provide a theoretical basis for LSP of certain turbine disk mortise.
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页数：14
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