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Prediction of welding distortion in butt joint of thin plates

Long, H.; Gery, D.; Carlier, A.; Maropoulos, P.G.

Authors

H. Long

D. Gery

A. Carlier

P.G. Maropoulos



Abstract

This paper investigates distortions and residual stresses induced in butt joint of thin plates using Metal Inert Gas welding. A moving distributed heat source model based on Goldak’s double-ellipsoid heat flux distribution is implemented in Finite Element (FE) simulation of the welding process. Thermo-elastic–plastic FE methods are applied to modelling thermal and mechanical behaviour of the welded plate during the welding process. Prediction of temperature variations, fusion zone and heat affected zone as well as longitudinal and transverse shrinkage, angular distortion, and residual stress is obtained. FE analysis results of welding distortions are compared with existing experimental and empirical predictions. The welding speed and plate thickness are shown to have considerable effects on welding distortions and residual stresses.

Citation

Long, H., Gery, D., Carlier, A., & Maropoulos, P. (2009). Prediction of welding distortion in butt joint of thin plates. Materials & Design, 30(10), 4126-4135. https://doi.org/10.1016/j.matdes.2009.05.004

Journal Article Type Article
Publication Date Dec 1, 2009
Deposit Date Sep 18, 2009
Journal Materials & Design
Print ISSN 0261-3069
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 30
Issue 10
Pages 4126-4135
DOI https://doi.org/10.1016/j.matdes.2009.05.004
Keywords Thermo-elastic–plastic FE analysis, Butt joint welding, Shrinkage, Residual stress.