Numerical simulations of poly-crystalline shape-memory alloys based on a micromechanical model |
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Authors: | Philipp Junker Klaus Hackl |
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Institution: | Institut für Mechanik, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum |
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Abstract: | Based on a micormechanical model we describe the material behaviour of specimens made of shape memory alloys by a finite element implementation. These materials undergo solid to solid phase transformations during loading and unloading which determine the characteristic pseudo-elastic or pseudo-plastic material response. Phase transitions, orientation distribution (pole figures) and the influence of pre-texture on the specimen, due to some previous treatment like rolling, are discussed. (© 2009 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim) |
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