Experimental and Numerical Investigation of Residual Stresses in low pulsed Laser Shock Peening on AA7075 T651

Abstract Laser shock peening (LSP) is the emerging technology among several severe surface treatment processes for improving mechanical characteristics of metallic materials by producing compressive residual stresses. Though several LSP experiments have been done on compressive residual stresses, sc...

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Bibliographic Details
Published inIOP conference series. Materials Science and Engineering Vol. 1126; no. 1; p. 12086
Main Authors Abeens, Qingbo, Rajasekaran, E., Premnath, M., Sarukasan, D, Muruganandhan, R., Thirumavalavan, K.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.03.2021
Subjects
Compressive properties
Finite element method
Laser shock processing
Mechanical properties
New technology
Numerical analysis
Peening
Pulsed lasers
Residual stress
Surface treatment
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Summary:Abstract Laser shock peening (LSP) is the emerging technology among several severe surface treatment processes for improving mechanical characteristics of metallic materials by producing compressive residual stresses. Though several LSP experiments have been done on compressive residual stresses, scare amount of studies concentrated on numerical investigation of residual stresses in LSP. The objective of this article is investigation of the experimental and numerical study of compressive residual stresses on AA 7075 t651. In the experiment, residual stresses analysis is performed. The sin^ method was utilized for measuring residual stresses. The three-dimensional (3-D) finite element method (FEM) analysis was applied to simulate the LSP on AA 7075 t651. The simulated and measured results showed good agreements. The numerical study was utilized to determine the compressive residual stresses.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/1126/1/012086