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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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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
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document
Coupling between experiment and numerical simulation of shape memory alloy multicrystal
Abstract
This paper deals with the experimental and numerical analysis of the effect of stress-strain heterogeneities due to elastic anisotropy, grain orientations and their effects on martensitic transformation for a Cu-Based SMA multicrystal. The shape of each grain is measured successively by optical microscopy and Electron Back Scattered Diffraction technique. During a tensile loading at room temperature, the displacement field of the free surface is measured by Digital Image Correlation. The considered shape for the finite element analysis is designed on the basis of the experimental characterization of the shape of each grain. The model is intended to simulate the behaviour of the multicrystal. The experimentally obtained data, such as the actual applied boundary conditions at the edge of the area, crystallographic orientation, and some material parameters of the literature chosen to be in conformity with our case, are introduced in the numerical model designed by the Abaqus finite element code. A SMA micromechanical constitutive law, implemented in this FE code, is considered for the behaviour description of each grain. It describes the effect of a martensitic transformation on the behaviour of a single crystal by taking into account the possible activation of various martensite variants. The study shows that the experimental and numerical results are in good agreement. Moreover, numerical results show the stress state in grains is disturbed by the neighboring grains and this disturbance has a strong influence on the martensite variant activation.