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A link between the phenomenological and physical modelling of transformation-induced plasticity

Sakhaei, A.H.
Lim, K.-M.
Thamburaja, P.
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Abstract
In high temperature shape memory alloys, the inelastic deformation mechanism is a combination of the transformation strain, viscoplastic strain in austenitic and martensitic phases, and transformation-induced plasticity. The latter is a consequence of the effect of austenite↔martensite transformation on the dislocation dynamics. In this study, the effect of the martensitic plates in microstructure, in the case of the internal stress field, is shown by a theoretical solution of the martensitic inclusions. The one-dimensional phenomenological continuum model is presented to predict the macroscopic behavior of a sample high temperature shape memory alloy by making a link between the internal stress field of the microstructure and the phenomenological model.
Keywords
Constitutive model, High temperature shape memory alloy, Inclusion, Martensitic transformation
Source Title
Computational Plasticity XII: Fundamentals and Applications - Proceedings of the 12th International Conference on Computational Plasticity - Fundamentals and Applications, COMPLAS 2013
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Date
2013
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Type
Conference Paper
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