Numerical Simulation Analysis of Shot Peening Residual Stress on Aluminum Alloy Surface Based on Finite Element Method

The residual stress structure strength of shot peening on aluminum alloy surface is follow-up, so it is necessary to etTectively detect the residual stress structure strength, reduce the installation error and improve the mechanical strength. A numerical simulation method of shot peening residual stress on aluminum alloy surface based on fmite element analysis and thermoelastic deformation estimation is proposed. The elastic hydrodynamic pressure model of shot peening on aluminum alloy surface is constructed, the thermal expansion coefficient of shot peening line on aluminum alloy surface is calculated, the relationship among the load, mechanical yield response and stress strength of shot peening on aluminum alloy surface is analyzed, the flexible factors of shot peening on aluminum alloy surface are considered, the stress characteristic response evaluation model is used to carry on the stress test, and the stress detection of shot peening edge profile on aluminum alloy surface is carried out according to the mechanical properties of the mechanism. According to the thermoelastic deformation estimation results, the residual stress structure strength state and the residual stress numerical parameter estimation of shot peening on aluminum alloy surface are carried out, and the optimal detection of residual stress structure strength is realized. The simulation results show that the numerical simulation of residual stress on aluminum alloy surface is accurate, the analysis time is shortened, and the evaluation accuracy of shot peening parameters on each aluminum alloy surface is high, and the mechanical strength is improved(Abstrac().