One-dimensional thermomechanical modeling of phase change front propagation in a SMA monocrystal

We propose a behavioral modeling that takes into account the thermomechanical couplings accompanying the phase transition in single-crystal CuZnAl samples. The goal of this model is to put forward the significant role played by the heat diffusion in the propagation mode of the phase change fronts. N...

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Veröffentlicht in:Comptes rendus. Mecanique 2003-01, Vol.331 (1), p.25-32
Hauptverfasser: Chrysochoos, Andre, Licht, Christian, Peyroux, Robert
Format: Artikel
Sprache:eng ; fre
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Zusammenfassung:We propose a behavioral modeling that takes into account the thermomechanical couplings accompanying the phase transition in single-crystal CuZnAl samples. The goal of this model is to put forward the significant role played by the heat diffusion in the propagation mode of the phase change fronts. Numerical simulations showed the existence of such a phase change front and predicted the calorimetric and kinematic effects accompanying its propagation. In particular, an inversion of the propagation way during a creep test and caused by an increase of the room temperature was correctly simulated by the model.
ISSN:1631-0721
1873-7234
DOI:10.1016/S1631-0721(02)00003-7