Accès gratuit
J. Phys. IV France
Volume 05, Numéro C2, Février 1995
IIIrd European Symposium on Martensitic Transformations
Page(s) C2-343 - C2-348
IIIrd European Symposium on Martensitic Transformations

J. Phys. IV France 05 (1995) C2-343-C2-348

DOI: 10.1051/jp4:1995252

Structure Calculations Applied to Shape Memory Alloys

Y. Gillet, E. Patoor and M. Berveiller

Laboratoire de Physique et Mécanique des Materiaux (UAR CNRS 1215), Institut Supérieur de Génie Mécanique et Productique, Université de Metz, Ile du Saulcy, 57045 Metz cedex, France

Despite the potential of these alloys and the amount of patents, successful industrial and commercial applications of Shape Memory Alloys (SMA) remain exceptions. This can be explained by the lack of design tools able to dimension correctly SMA elements because the non elastic behavior of SMA lead the classical method of design to be inefficient. Furthermore, this behavior is strongly dependent on temperature and exhibits hysteresis. From the definition of constitutive equations describing the superelastic behavior for an homogeneous stress field, we derive a scheme of resolution for mechanical devices. Results obtained by this way are compared with experimental observations performed on Cu- based alloys.

© EDP Sciences 1995