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CSME 2018/04
Volume 39 No.2
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163-170
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Numerical Simulation and Optimization of Shot Peening Process Parameters
Ren-Sheng Zhu a, Hong Ling Zhaoa, Han Zhao a, Yue Zhanga and Ji-You Peng a
aSchool of Machinery and Automobile Engineering, Hefei University of Technology, Hefei 230009, PRC.
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Abstract:
In this paper, a finite element ( model of shot peening (SP) process is developed for multiple shot impacts on 304 stainless steel sheet by using LS DYNA code . The model is partially validated by experiments using single shot. Then numerical simulations of multip le shot impacts are performed and the residual stress profiles below the target surface are investigated so that the effects of shot velocity, radius and yield strength of shot material on averaged residual stress profiles are obtained . Finally, the FE mod el is applied to optimization of SP process parameters by determining the optimal regression equation with the m aximum compressive residual stress as function of shot velocity, radius and yield strength by means of s tepwise regression analysis. The optimal model proposed is practical for engineers.
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Keywords: finite element, residual stress, s hot peening, numerical simulation
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©
2018
CSME , ISSN 0257-9731
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