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On the numerical simulation of material inhomogeneities due to martensitic phase transformations in poly-crystals

P. Junker, K. Hackl.

Esomat 2009 - 8th European Symposium on Martensitic Transformations, E D P Sciences, 2009, 03007, (2009)

Abstract
Experimental results show that martensitic phase transformations in shape-memory alloys occur in localized zones. Based on a micromechanical model we want to simulate these effects. The mathematical treatment is accompanied by a finite-element calculation which includes, due to the model modification, a regularization. The result of this effort is a micromechanically well motivated algorithm which shows qualitatively a good agreement with experiments. Numerical examples are presented.


Keyword(s): shape-memory alloys; energy; reorientation; dissipation; behavior; model
DOI: 10.1051/esomat/200903007
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