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

Mame Daro Fall (1) , Karine Lavernhe Taillard (2) , Anne Maynadier (3) , Olivier Hubert (2)

1 LMT - Laboratoire de Mécanique et Technologie
2 LMT - Laboratoire de Mécanique et Technologie
3 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]

The increasing use of Shape Memory Alloys (SMA) for complex applications requires a robust modeling of phenomena governing their behavior. The development of micro-macro multiaxial models is relevant since the SMA behavior is strongly correlated to appearance/disappearance/re-orientation of martensite variants at the microscale. Such approach relies the definition of transition scale rules, depending on the material microstructure, and an appropriate description of the behavior of constituents. On the other hand, it requires experiments for identification of parameters such as enthalpies or kinetic constants and validation of the model. This second point is addressed.

Domaines: Matériaux et structures en mécanique [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]

Mame Daro Fall, Karine Lavernhe Taillard, Anne Maynadier, Olivier Hubert. Validation of Shape Memory Alloys Multiscale Modeling thanks to in-situ X- Rays Diffraction. ICEM16, 2014, Cambridge, United Kingdom. 2 p. ⟨hal-01021818⟩