Numerical and experiment study of residual stress and strain in multi - pass GMA welding

Chand, Reenal R. and Kim, I-S. and Lee, J-H. and Kim, J-S. (2013) Numerical and experiment study of residual stress and strain in multi - pass GMA welding. Advanced Materials Research, 717 . pp. 403-409. ISSN 1022-6680

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Abstract

There must selection an optimal of welding parameter and condition that reduces the risk of mechanical failures on weld structures.The residual stress and welding deformation have the large impact on the failure of welded structures.To achieve the required precision for welded structures, it is required to predict the welding distortions at the early stages.Therefore, this study uses 2DFinite Element Method (FEM) to predict residual stress and strain on thick SS400 steel metal plate. A birth and death technique is employed to control the each weld pass welding. Gas Metal Arc (GMA) welding experiment is also performed with similar welding condition to validate the FE results.The simulated and experiment results provide good evidence that heat input is main dependent on the welding parameter and residual stress and distortions are mainly affected by amount on heat input during each weld-pass.

Item Type:	Journal Article
Subjects:	T Technology > TJ Mechanical engineering and machinery T Technology > TS Manufactures
Divisions:	Faculty of Science, Technology and Environment (FSTE) > School of Engineering and Physics
Depositing User:	Ronal Chand
Date Deposited:	16 Dec 2013 02:07
Last Modified:	14 Jun 2016 02:51
URI:	https://repository.usp.ac.fj/id/eprint/7044

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