Investigation of Global Buckling Distortion in Welding of a Thin Wall Aluminium T Joint

Abstract:

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In this paper global welding buckling distortion of a thin wall aluminum T joint is investigated. A thermo-elastoplastic model is employed to determine longitudinal residual stresses; analysis of thermal model and elastic-viscoplastic (Anand) model are decoupled. Molten puddle motion (speed of welding) is modeled by using birth and death element method and time dependent model. Three dimensional nonlinear-transient heat flow analysis has been used to obtain temperature distribution, and then by applying thermal results and using three dimensional Anand elastic-viscoplastic model, stress and deformation distributions are obtained. By applying residual stresses on a structural model and using eigenvalue methods, global buckling instability of the welded structure is determined. Some experiments are done for validating the numerical results.

Info:

Periodical:

Materials Science Forum (Volumes 519-521)

Edited by:

W.J. Poole, M.A. Wells and D.J. Lloyd

Pages:

1187-1192

DOI:

10.4028/www.scientific.net/MSF.519-521.1187

Citation:

M. A. Zaeem et al., "Investigation of Global Buckling Distortion in Welding of a Thin Wall Aluminium T Joint", Materials Science Forum, Vols. 519-521, pp. 1187-1192, 2006

Online since:

July 2006

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Price:

$35.00

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