About modelling the shape memory alloy behaviour based on the phase transformation surface identification under proportional loading and anisothermal conditions |
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| Institution: | 1. Laboratoire de Mécanique Appliquée Raymond Chaléat, UMR-CNRS 6604, Université de Franche-Comté, 24 chemin de l’Epitaphe, 25000 Besançon, France;2. Laboratoire de Mécanique et Technologie, UMR-CNRS 8535, Université Paris VI, 61 avenue du Président Wilson, F-94235 Cachan Cedex, France |
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| Abstract: | Based on the experimental identification of the phase transformation surface, a modelling of shape memory alloys anisothermal behaviour is proposed. Within the framework of the thermodynamics of irreversible processes, two internal variables are chosen: the stress-induced martensite volume fraction and the self-accommodating martensite volume fraction. A special attention is paid to take into account the asymmetry between tension and compression behaviours. |
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