Finite element modeling of laser beam welding for residual stress calculation

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Numerous welding processes are used in naval, automotive and aircraft industries for joining structural components. Laser beam welding represents a key technology due to his low heat input and the high degree of process automation. Nonetheless, all welded materials are characterised by a strong change of microstructure in the heat effected and fusion zone. For simulation of residual stress fields the finite element method is the most often simulation tool. Reliable simulations have to take into account the changes in microstructure. Within this work, a viscoplastic material model for welding is presented, accounting for the solid and fluid phase, which is extended later on by a simple kinetic model to model precipitation hardening. (© 2017 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Original languageEnglish
JournalProceedings in applied mathematics and mechanics
Volume17
Issue number1
Pages (from-to)415 - 416
Number of pages2
ISSN1617-7061
DOIs
Publication statusPublished - 2017
Event88th Annual Meeting of the International Association of Applied Mathematics and Mechanics - GAMM 2017 - Weimar, Germany
Duration: 06.03.201710.03.2017
Conference number: 88
https://jahrestagung.gamm-ev.de/index.php/2017/annual-meeting-2017

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