The numerical challenges in multiphysical modeling of laser welding with arbitrary Lagrangian-Eulerian method

I. Tomashchuk (1) , Issam Bendaoud (2) , J-M Jouvard (1) , P. Sallamand (1)

1 ICB - Laboratoire Interdisciplinaire Carnot de Bourgogne
2 AS - Assemblages Soudés

The interaction of high power laser beam with metallic materials produces a number of interconnected phenomena that represent a serious challenge for numerical modeling, especially for creation of auto-consistent models. Additional difficulty consists in lack of data on materials properties at the temperatures superior to their melting point. The present work summarizes the numerical challenges in creation and validation of free-surface models using ALE moving mesh coupled with heat transfer equation and Navier-Stokes fluid flow.

Mots clés: laser welding; metallic alloys; moving mesh; multiphysics

Domaines: Matériaux; Mécanique des fluides [physics.class-ph]; Thermique [physics.class-ph]; Optique / photonique

I. Tomashchuk, Issam Bendaoud, J-M Jouvard, P. Sallamand. The numerical challenges in multiphysical modeling of laser welding with arbitrary Lagrangian-Eulerian method. COMSOL Conference, Oct 2018, Lausanne, Switzerland. ⟨hal-01962642⟩