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Modelling of welding. A comparison of a thermo-mechano-metallurgical constitutive model with a thermo-viscoplastic material model

✍ Scribed by J. Ronda; Y. Estrin; G.J. Oliver

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
774 KB
Volume
60
Category
Article
ISSN
0924-0136

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✦ Synopsis

Welding is a very complex process where electrical energy and filler metal are transferred to a weldment via an electric are. Coupled electromagnetic, thermal, mechanical, and metallurgical processes occur in the heat affected zone (HAZ). Metallurgical processes: melting, solidification, and solid phase transformations as well as combustion are in the heart of this manufacturing technique. The modern approach to modelling of welding leads to two models: (i) thermo-mechanical process occurring in a viscoplastic body, (ii) thermo-mechano-metallurgical process in an inelastic body. Results are shown for a simple welding benchmark problem formulated for two thick plates.

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