Validation of a Multiscale Modeling of Thermomechanical Behavior of Shape Memory Alloys thanks to in-situ X-Rays Diffraction

Mame Daro Fall (1) , Karine Lavernhe Taillard (1) , Anne Maynadier (1) , Olivier Hubert (1)

1 LMT - Laboratoire de Mécanique et Technologie

Recently, a multiscale and multiaxial model has been built, that describes the behavior of a RVE from the physics of martensitic transformation and R-phase transformation on the scale of the crystal lattice. It is based on the comparison of the free energies of each component. A probabilistic comparison is made (Boltzmann distribution) to determine the internal variables: the volume fractions of the phases. This model simulates of all kinds of thermo-mechanical loading for both isotropic and anisotropic textures and gives account for the behavior properties of SMA

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

Mame Daro Fall, Karine Lavernhe Taillard, Anne Maynadier, Olivier Hubert. Validation of a Multiscale Modeling of Thermomechanical Behavior of Shape Memory Alloys thanks to in-situ X-Rays Diffraction. 8th International Conference on PROCESSING & MANUFACTURING OF ADVANCED MATERIALS Processing, Fabrication, Properties, Applications - Thermec 2013, Dec 2013, Las Vegas, United States. ⟨hal-01552438⟩