Modélisation multidomaine du comportement magnéto-mécanique des aciers dual-phases

Frederick Mballa Mballa (1) , Olivier Hubert (1) , Said Lazreg (1) , Philip Meilland (2)

1 LMT - Laboratoire de Mécanique et Technologie
2 ArcelorMittal Maizières Research SA

The microstructure and mechanical behavior of dual-phase steels are highly sensitive to the variation of the process (heat treatments). Online control by magnetic method is relevant. A measurement under applied stress must be considered. The dual-phase is a two-phase medium (ferrite / martensite). Each phase can be considered as a sphere embedded in a homogeneous equivalent medium. The model used for each phase is based on a magneto-mechanical coupled model. This is an explicit single crystalline model representative of the behavior of the corresponding phase. Localization rules allow the simulation of the two-phases medium. Experiments and modeling are compared.

Domaines: Mécanique des matériaux [physics.class-ph]; Mécanique des matériaux [physics.class-ph]

Frederick Mballa Mballa, Olivier Hubert, Said Lazreg, Philip Meilland. Modélisation multidomaine du comportement magnéto-mécanique des aciers dual-phases. 20ème CONGRES FRANCAIS DE MECANIQUE DU 28 AOUT AU 2 SEPTEMBRE, Aug 2011, Besançon, France. article 957 session 22 (multiphysique). ⟨hal-00619251⟩