A Numerical and Experimental Study of Distribution of the Residual Stress on the Shot Peened Low Alloy Steel

被引:3
作者
Pham Quang Trung [1 ,2 ]
Butler, David Lee [3 ]
Idapalapati, Sridhar [1 ]
机构
[1] Nanyang Technol Univ, Sch Mech & Aerosp Engn, 50 Nanyang Ave, Singapore 639798, Singapore
[2] Ho Chi Minh City Univ Technol, Block B11,268 Ly Thuong Kiet St,Ward 14,Dist 10, Ho Chi Minh City 700000, Vietnam
[3] Univ Strathclyde, Dept Design Manufacture & Engn Management, Glasgow G1 1XJ, Lanark, Scotland
来源
JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY-TRANSACTIONS OF THE ASME | 2018年 / 140卷 / 04期
关键词
shot peening; AISI; 4340; steel; finite element method (FEM); residual stress; random function; BEHAVIOR;
D O I
10.1115/1.4040004
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
Shot peening is a cold working process, which is used to enhance the properties of materials, especially the fatigue life as it induces large compressive residual stresses in the subsurface of materials. In this paper, the effect of the shot peening process on the topography of the shot peened surface and the distribution of the residual stresses in the subsurface of the material was systematically investigated. A technique to estimate the shot peening coverage was employed using a finite element model which was further developed using experimental results for increased accuracy. The comparison between the numerical and experimental studies gives a good agreement of the distribution of the residual stresses in the subsurface of the shot peened material. The shot peening pressure and media size are two main factors affecting on the presence of compressive residual stresses in the subsurface of the material.
引用
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页数:8
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