CHANGEMENTS DE PHASES ET MICROSTRUCTURES
J. Phys. IV France 04 (1994) C3-215-C3-220
Martensitic transformation plasticity simulations by finite elementsJ.F. GANGHOFFER1, K. SIMONSSON2, S. DENIS1, E. GAUTIER1, S. SJÖSTRÖM2 and A. SIMON1
1 Laboratoire de Science et Génie des Matériaux Métalliques, UA 159 du CNRS, Ecole des Mines, Parc de Saurupt, 54042 Nancy cedex, France
2 Department of Solid Mechanics and Strength of Materials, University of Linköping, 58183 Linköping, Sweden
The mechanical behaviour associated to the martensitic transformation has been modelled using a 2D FE description. The martensite variants are constituted of different elements of the mesh and four different variants are allowed to transform in the grain. The transformation progress is prescribed using a thermodynamical criterion based on the maximal work associated to the variant formation. Transformation plasticity deformation and plates orientation patterns are obtained for three stress levels. These results are discussed in regard to the model used and the physical parameters introduced in the model.
© EDP Sciences 1994