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Please use this identifier to cite or link to this item: http://hdl.handle.net/10373/795

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Title: Theory of phase transformation and reorientation in single crystalline shape memory alloys
Authors: Zhu, Jiujiang
Liang, N. G.
Cai, M.
Liew, K. M.
Huang, W. M.
Affiliation: University of Abertay Dundee. School of Computing & Engineering Systems
Keywords: Condensed matter
Structural
Mechanical
Thermal
Issue Date: Feb-2008
Publisher: Institute of Physics
Type: Journal Article
Refereed: peer-reviewed
Rights: Published version (c)Institute of Physics, available from http://dx.doi.org/10.1088/0964-1726/17/01/015041
Citation: Zhu, J.J., et al. 2008. Theory of phase transformation and reorientation in single crystalline shape memory alloys. Smart Materials and Structures. 17(1). Available from http://dx.doi.org/10.1088/0964-1726/17/01/015041
Abstract: A constitutive model, based on an (n+1)-phase mixture of the Mori–Tanaka average theory, has been developed for stress-induced martensitic transformation and reorientation in single crystalline shape memory alloys. Volume fractions of different martensite lattice correspondence variants are chosen as internal variables to describe microstructural evolution. Macroscopic Gibbs free energy for the phase transformation is derived with thermodynamics principles and the ensemble average method of micro-mechanics. The critical condition and the evolution equation are proposed for both the phase transition and reorientation. This model can also simulate interior hysteresis loops during loading/unloading by switching the critical driving forces when an opposite transition takes place.
URI: http://hdl.handle.net/10373/795
ISSN: 0964-1726
Appears in Collections:Computing & Engineering Systems Collection

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