| People | Locations | Statistics |
|---|---|---|
| Naji, M. |
| |
| Motta, Antonella |
| |
| Aletan, Dirar |
| |
| Mohamed, Tarek |
| |
| Ertürk, Emre |
| |
| Taccardi, Nicola |
| |
| Kononenko, Denys |
| |
| Petrov, R. H. | Madrid |
|
| Alshaaer, Mazen | Brussels |
|
| Bih, L. |
| |
| Casati, R. |
| |
| Muller, Hermance |
| |
| Kočí, Jan | Prague |
|
| Šuljagić, Marija |
| |
| Kalteremidou, Kalliopi-Artemi | Brussels |
|
| Azam, Siraj |
| |
| Ospanova, Alyiya |
| |
| Blanpain, Bart |
| |
| Ali, M. A. |
| |
| Popa, V. |
| |
| Rančić, M. |
| |
| Ollier, Nadège |
| |
| Azevedo, Nuno Monteiro |
| |
| Landes, Michael |
| |
| Rignanese, Gian-Marco |
|
Zineb, Tarak Ben
Université de Lorraine
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2020Combined bending–torsion testing device for characterization of shape memory alloy endodontic filescitations
- 2018Uncertainty analysis of an actuator for a shape memory alloy micro-pump with uncertain parameterscitations
- 2012Finite Element analysis of a shape memory alloy actuator for a micropumpcitations
- 2011Impact of microstructural mechanisms on ductility limits
- 2010Coupling between measured kinematic fields and multicrystal SMA finite element calculationscitations
- 2009Coupling between experiment and numerical simulation of shape memory alloy multicrystalcitations
- 2009Strain localization analysis deduced from a large strain elastic-plastic self-consistent model for multiphase steels
- 2009Dialogue entre expérience et simulation numérique pour un multicristal en alliage à mémoire de forme
- 2007Strain localization analysis using a large strain self-consistent approach
Places of action
| Organizations | Location | People |
|---|
article
Coupling between measured kinematic fields and multicrystal SMA finite element calculations
Abstract
Experimental and numerical analysis of the effect of stress-strain heterogeneities (due to elastic anisotropy, grain orientations and interactions) on martensitic transformation are investigated here for a Cu-Based SMA multicrystal. The shape and crystallographic orientation of each grain are measured successively by optical microscopy and Electron Back Scattered Diffraction (EBSD) technique. During a tensile loading at room temperature, the displacement field of the free surface is measured by Digital Image Correlation (DIC) with the software CORRELI-Q4 [Roux, Hild, 2006: Besnard et al., 2006]. The strain field is then derived numerically. A finite element model is designed. The shape of each grain is defined as a subdomain and meshed by three dimensional continuum elements. A behavior law, describing the thermomechanical response of a SMA single crystal, is adopted and implemented into the Abaqus (R) finite element code. It is based on a micromechanical approach and takes into account the various possible active martensitic variants. The study shows that the experimental and numerical results are in good agreement. Moreover, the stress state in grains is disturbed by the neighboring grains and this disturbance has a strong influence on the martensite variant activation. Finally, the study shows that the martensitic transformation mainly occurs in localized bands involving the well crystallographic oriented grains with respect to the loading direction.