| Numéro |
J. Phys. IV France
Volume 115, June 2004
|
|
|---|---|---|
| Page(s) | 29 - 36 | |
| DOI | https://doi.org/10.1051/jp4:2004115004 | |
J. Phys. IV France 115 (2004) 29
DOI: 10.1051/jp4:2004115004
Experimental determination of initial surface of phase transformation of SMA
C. Bouvet1, S. Calloch2, K. Taillard2 and C. Lexcellent11 Laboratoire de Mécanique Appliquée R. Chaléat, Université de Franche-Comté, 24 chemin de l' Épitaphe, 25000 Besançon, France
2 LMT-Cachan, École Normale Supérieure de Cachan, 61 avenue du Président Wilson, 94235 Cachan Cedex, France
Abstract
This paper is concerned with the mechanical behavior of Shape Memory
Alloys (SMA). A particular attention is paid to the behavior under
multi-axial proportional and non-proportional loadings. A large
experimental data-base, composed of tension-torsion tests,
tension-internal pressure tests and bi-axial compressive tests is
presented and reported. For each
type of multi-axial tests, an emphasis is placed on the
determination of the shape of the transformation outset surface
and the transformation strain rate is determined for selected
loading path. Finally, a generalized J
2-J
3 criterion of
transformation outset, based on experimental observations, is
proposed and identified.
© EDP Sciences 2004