Analysis of Arc Welded Thin-Walled Cylinders to Investigate the Effects of Welding Process Parameters on Residual Stresses
-
Published:2008-04
Issue:
Volume:575-578
Page:763-768
-
ISSN:1662-9752
-
Container-title:Materials Science Forum
-
language:
-
Short-container-title:MSF
Author:
Malik Afzaal M.1,
Qureshi Ejaz M.1,
Dar Naeem Ullah2
Affiliation:
1. National University of Sciences & Technology, CEME
2. University of Engineering & Technology Taxila
Abstract
The research work presents a computational methodology based on three-dimensional
finite element model to simulate the gas tungsten arc welding (GTAW) of thin-walled cylinders.
The aim was to study the effects of two basic welding parameters (welding speed and welding
current) on weld induced residual stresses. The complex phenomenon of arc welding was
numerically solved by sequentially coupled transient, non-linear thermo-mechanical analysis. The
accuracy of the numerical model was validated through experiments for temperature distribution
and residual stresses. The results reveals that the present simulation strategy can be used as a proper
tool to get the optimized welding process parameters and minimize the in service failures of thinwalled
structures due to residual stresses.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science