Research on Response of Copper to Micro Laser Shock Peening under 2-D Pressure Model

Abstract:

2-D pressure model in axial and radial direction was proposed to simulate response of copper subjected to micro laser shock peening (μLSP) according to the size effect in the propagation of shock wave induced by laser in microscale. Simulations under 1-D and 2-D pressure model were conducted respectively in order to explore the effect of pressure in radial direction. The results show that distribution of residual stress and plastic deformation in depth and width are obviously different, and response of copper under 2-D pressure model are more close to the experimental results. The pressure effect in radial direction in the propagation of shock wave shouldnt be ignored, and 2-D shock wave pressure model plays an important role in accurate simulation of μLSP.

• Periodical: Key Engineering Materials (Volume 568)
• Pages: 37-43
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.568.37
• Online since: July 2013
• Authors: Yu Jie Fan, Kai Ting Yin, Yong Mei Zhu
• Keywords: 2-D Pressure Model, Micro Laser Shock Peening, Plastic Deformation, Residual Stress, Size Effect

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