An ideal model for stress-induced martensitic transformations inshape-memory alloys
Journal Title: Frattura ed Integrità Strutturale - Year 2014, Vol 8, Issue 29
Abstract
In this paper, a novel model for stress-induced martensitic transformations in shape-memory alloysis proposed. Accordingly, the constitutive pseudo-elastic behavior of these materials is described. The modelaccounts for the possible co-existence of austenitic/martensitic phases and for asymmetric response in tensionand compression (both for transformation and stiffness properties).The model is developed under the assumption of ideal behavior during martensitic transformation, and thepredicted response is governed by few parameters, standard in the context of shape-memory alloys' constitutivemodels, that can be straightforwardly identified from experimental data. Moreover, proposed modelingframework opens to the investigation on the effects of non-linear transformation lines in phase diagrams and oftemperature-dependent transformation strains.
Authors and Affiliations
Michele Marino
Keywords
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- EP ID EP105138
- DOI 10.3221/IGF-ESIS.29.10
- Views 77
- Downloads 0
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