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Finite Element Analysis of Strain and Residual Stress in Weld Specimen  

양승용 (한국철도기술연구원)
구병춘 (한국철도기술연구)
정흥채 (한국철도기술연구원)
Publication Information
Journal of the Korean Society for Railway / v.7, no.2, 2004 , pp. 85-92 More about this Journal
Abstract
This paper consists of two parts. One is finite element analysis of the redistribution of residual stresses of weld specimen by cutting. This work is necessary to predict the actual residual stress distribution of weld specimens used in fatigue test. The other subject is to calculate the relaxation of residual stress and the strain field induced by cyclic loading. To obtain fatigue life of weldment, the value of strain amplitude at each position is necessary, for example in the strain-life approach, and the numerical results can be used to verify experimental strain measurements. Thermo mechanical finite element analyses were conducted on the commercial package ABAQUS.
Keywords
Residual stress; Welding; Cutting; Finite element analysis;
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