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2013 (Vol. 5, Issue: 20)
Article Information:

Numerical Simulation and Experimental of Residual Stress Field of SAE1070 Spring Steel Induced by Laster Shock

Bing Han, Changliang Xu, Jialian Shi and Hua Song
Corresponding Author:  Bing Han 

Key words:  Laser shock processing, residual stress, numerical simulation, finite element, , ,
Vol. 5 , (20): 4869-4877
Submitted Accepted Published
September 27, 2012 November 11, 2012 May 15, 2013
Abstract:

Laser Shock Processing (LSP) is an innovative surface treatment technology. LSP can induce compress residual stress layer in the surface of metallic materials, which is used for improving the fatigue life. In this study, the propagation course of typical laser shock wave in material was analyzed according to the theory of plasticity dynamics and the theory of stress wave. The effects of laser shock processing, residual stress of SAE1070 steel surface layer were studied. The finite element software ANSYS/LS-DYNA was applied to simulate the residual stress field of SAE1070 steel surface layer induced by laser shock processing. A bilinear isotropic model in a nonlinear inelastic model is created by using ANSYS/LS-DYNA finite element analysis software. Shock wave pressures under different peak loads are adopted to predict residual stress distribution. The experimental results for the magnitude and distribution of residual stress are consistent with the numerical simulation.
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  Cite this Reference:
Bing Han, Changliang Xu, Jialian Shi and Hua Song, 2013. Numerical Simulation and Experimental of Residual Stress Field of SAE1070 Spring Steel Induced by Laster Shock.  Research Journal of Applied Sciences, Engineering and Technology, 5(20): 4869-4877.
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ISSN (Online):  2040-7467
ISSN (Print):   2040-7459
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