Application of SPH for Modelling Heat Transfer and Residual Stress Generation in Arc Welding

Abstract:

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An approach for three-dimensional modelling of thermo-mechanical responses in an arc welding process is developed using the Smoothed Particle Hydrodynamics (SPH) method. It is demonstrated for a simple arc welding configuration by solving the fully coupled three-dimensional elastoplastic and heat transfer analysis. The temperature distribution of the metal in the weld pool and the surrounding parent material are analysed using SPH, and the resulting residual thermal stresses are evaluated. This work establishes the capability of SPH as a tool for simulating the long-term thermo-mechanical responses, including heat transfer and residual stresses in a welded joint, and gaining insights into post-welding structural behaviour of joints during cooling stages.

Info:

Periodical:

Materials Science Forum (Volumes 654-656)

Main Theme:

Edited by:

Jian-Feng Nie and Allan Morton

Pages:

2751-2754

DOI:

10.4028/www.scientific.net/MSF.654-656.2751

Citation:

R. Das and P. W. Cleary, "Application of SPH for Modelling Heat Transfer and Residual Stress Generation in Arc Welding", Materials Science Forum, Vols. 654-656, pp. 2751-2754, 2010

Online since:

June 2010

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Price:

$35.00

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