Phase Transformation of Anisotropic Shape Memory Alloys: Theory and Validation in Superelasticity
dc.contributor.author | CHATZIATHANASIOU, Dimitris |
dc.contributor.author | CHEMISKY, Yves |
dc.contributor.author | CHATZIGEORGIOU, George |
dc.contributor.author | PATOOR, Etienne |
dc.contributor.author
hal.structure.identifier | MERAGHNI, Fodil
|
dc.date.accessioned | 2015 |
dc.date.available | 2016 |
dc.date.issued | 2015 |
dc.date.submitted | 2015 |
dc.identifier.issn | 2199-384X |
dc.identifier.uri | http://hdl.handle.net/10985/9970 |
dc.description.abstract | In the present study, a new transformation criterion that includes the effect of tension–compression asymmetry and texture-induced anisotropy is proposed and combined with a thermodynamical model to describe the thermomechanical behavior of polycrystalline shape memory alloys. An altered Prager criterion has been developed, introducing a general transformation of the axes in the stress space. A convexity analysis of such criterion is included along with an identification strategy aimed at extracting the model parameters related to tension–compression asymmetry and anisotropy. These are identified from a numerical simulation of an SMA polycrystal, using a self-consistent micromechanical model previously developed by Patoor et al. (J Phys IV 6(C1):277–292, 1996) for several loading cases on isotropic, rolled, and drawn textures. Transformation surfaces in the stress and transformation strain spaces are obtained and compared with those predicted by the micromechanical model. The good agreement obtained between the macroscopic and the microscopic polycrystalline simulations states that the proposed criterion and transformation strain evolution equation can capture phenomenologically the effects of texture on anisotropy and asymmetry in SMAs. |
dc.language.iso | en |
dc.publisher | Springer |
dc.rights | Post-print |
dc.subject | Shape memory alloys |
dc.subject | Superelasticity |
dc.subject | Anisotropy |
dc.subject | Tension–compression asymmetry |
dc.subject | Transformation criteria |
dc.subject | Evolution equation |
dc.title | Phase Transformation of Anisotropic Shape Memory Alloys: Theory and Validation in Superelasticity |
ensam.embargo.terms | 2016-08 |
dc.identifier.doi | 10.1007/s40830-015-0027-y |
dc.typdoc | Article dans une revue avec comité de lecture |
dc.localisation | Centre de Metz |
dc.subject.hal | Sciences de l'ingénieur: Matériaux |
dc.subject.hal | Sciences de l'ingénieur: Mécanique |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Matériaux et structures en mécanique |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des matériaux |
dc.subject.hal | Sciences de l'ingénieur: Mécanique: Mécanique des solides |
ensam.audience | Internationale |
ensam.page | 1-16 |
ensam.journal | Shape Memory and Superelasticity |
ensam.volume | August |
hal.identifier | hal-01196348 |
hal.version | 1 |
hal.submission.permitted | updateMetadata |
hal.status | accept |