![]() ![]() Firstly, a 3D finite element model (FEM) is developed to predict residual stress with different spatial energy distribution, and the predicted residual stress is validated by experimental data. ![]() In this work, a titanium alloy is treated by LSP with flat-top and Gaussian laser beams, and the effects of spatial energy distribution on residual stress are investigated. The shock wave pressure has considerable influence on residual stress distribution, which is affected by the distribution of laser energy. residual stress introduced by laser shock peening (LSP) is one of the most important factors in improving metallic fatigue life. 8 Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038, China. 7 Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038, China. 6 Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038, China. 5 School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China. ![]() 4 Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038, China. 3 Institute of Aeronautics Engine, School of Mechanical Engineering, Xi'an Jiaotong University, Xi'an 710049, China. 2 Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038, China. 1 Science and Technology on Plasma Dynamics Laboratory, Air Force Engineering University, Xi'an 710038, China. ![]()
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