Ni-Mn-Ga single crystal Shape Memory Alloy magneto-thermomechanical modeling

Autor: Abadie J., Hubert A., Gauthier J.Y., Lexcellent C., Chaillet N.
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Zdroj: EPJ Web of Conferences, Vol 6, p 29003 (2010)
Druh dokumentu: article
ISSN: 2100-014X
DOI: 10.1051/epjconf/20100629003
Popis: In the frame of Thermodynamics of irreversible process, a model describing the thermomagneto-mechanical behavior of a single crystal of Ni-Mn-Ga is built. The choice of internal variables is linked to the physics of the problem (fraction of martensite variants, fraction of Weiss domains, magnetization angle). The simulations permit to describe the paths in the space (stress, temperature, magnetic field) in agreement with experimental tests. A special attention will be devoted to the control laws required to use these functional materials as sensors or actuators.
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