Global Buckling Investigation in Welding of a Thin Wall Aluminum T Joint

Abstract

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.

Meeting Name

ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference (2006: Jul. 23-27, Vancouver, BC, Canada)

Department(s)

Materials Science and Engineering

Keywords and Phrases

Death element method; Elastoplastic model; Time dependent model; Aluminum; Mathematical models; Residual stresses; Temperature distribution; Viscoplasticity; Welding; Joints (structural components)

International Standard Book Number (ISBN)

978-0791837825

International Standard Serial Number (ISSN)

0277-027X

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2006 American Society of Mechanical Engineers, All rights reserved.

Publication Date

01 Jul 2006

Link to Full Text

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