Implementation of a constitutive model for different annealed superelastic SMA wires with rhombohedral phase

摘要

Two aspects of NiTi are the focus of the present work. First, the austenite-rhombohedral transformation, which is often neglected by reason of its little mechanical relevance, but can be used in some applications. Second, the superelastic behavior related to a NiTi material that undergoes a low temperature annealing.