Cette Note présente un algorithme d'intégration en temps pour l'évolution thermomécanique des structures formées d'alliages à mémoire de forme. On donne une formulation variationnelle du problème discrétisé en temps, ce qui permet d'étudier l'existence et l'unicité de solutions en fonction de la loi de comportement utilisée. Un exemple numérique est présenté afin d'illustrer la méthode et d'étudier l'influence du couplage thermomécanique.
This Note presents a time-integration strategy for computing the evolution of structures embedding shape-memory alloys in a thermomechanical setting. A variational formulation is associated with the scheme proposed, which allows one to study the existence and unicity of solutions depending on the material model considered. A numerical example is presented to illustrate the method and discuss the influence of the thermomechanical coupling.
@article{CRMECA_2006__334_4_266_0, author = {Micha\"el Peigney}, title = {A time-integration scheme for thermomechanical evolutions of shape-memory alloys}, journal = {Comptes Rendus. M\'ecanique}, pages = {266--271}, publisher = {Elsevier}, volume = {334}, number = {4}, year = {2006}, doi = {10.1016/j.crme.2006.02.006}, language = {en}, }
Michaël Peigney. A time-integration scheme for thermomechanical evolutions of shape-memory alloys. Comptes Rendus. Mécanique, Volume 334 (2006) no. 4, pp. 266-271. doi : 10.1016/j.crme.2006.02.006. https://comptes-rendus.academie-sciences.fr/mecanique/articles/10.1016/j.crme.2006.02.006/
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