Paper Title:

Residual Stress Prediction and Relaxation in Welded Tubular Joints under Constant Cyclic Loading

Periodical Materials Science Forum (Volumes 524 - 525)
Main Theme Residual Stresses VII, ECRS7
Edited by W. Reimers and S. Quander
Pages 323-330
DOI 10.4028/www.scientific.net/MSF.524-525.323
Citation Z. Barsoum, 2006, Materials Science Forum, 524-525, 323
Online since September, 2006
Authors Z. Barsoum
Keywords Redistribution, Relaxation, Residual Stress, Torsional Fatigue, Tubular Joints, Welding Simulation
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Abstract

In this paper three-dimensional welding simulations were carried out in FE software ANSYS in order to predict transient temperatures and the residual stresses in a three pass welded tubular joints. The thermal analysis and the moving heat source were verified with temperature measurements and the computed residual stresses were verified with hole drilling measurements. Then residual stress relaxation analyses were carried out on the tubular structure, with similar load cases as in earlier fatigue testing on the same tubular joint structures.