J. Phys. IV France 05 (1995) C2-519-C2-524
Application of the Beam Theory to Model the Pseudoelastic and Ferroelastic Bending of SMA BeamsL. Orgeas1 and D. Favier2
1 Laboratoire Génie Physique et Mécanique des Matériaux (GPM2), URA 793 du CNRS, Ecole Nationale Supérieure de Physique de Grenoble, BP. 46, 38042 Saint-Martin-d'Hères cedex, France
2 Laboratoire Sols Solides Structures (3S), URA 1511 du CNRS, Université Joseph Fourier, BP. 53X, 38041 Grenoble cedex, France
The study of simple beams made of shape memory alloys (SMA) is very interesting for industrial and experimental reasons. In this paper, it is realised using strength of materials' approach : different kinematical and behavioural assumptions are successively used to solve circular and three supports bendings' problems. The kinematical ones consist in taking into account small or large displacements, the friction being or not neglected, whereas the behavioural ones consider different constitutive equations ie. the elastic-perfectly plastic model and the asymmetric elastohysteretic model. The influences of all these hypothesis are fïnally illustrated in three supports bending simulations.
© EDP Sciences 1995