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Proceedings Paper

Deformation behavior of shape memory alloys in various temperature ranges
Author(s): Hisashi Naito; Yuji Matsuzaki; Tadashige Ikeda
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Paper Abstract

Introducing the phase interaction energy between austenite and detwinned martensite, the presented authors studied pseudoelastic transformations of shape memory alloys and have analytically shown that the transformation is a thermomechanical process along a stable equilibrium path, as observed in experiments. To further exploit the phase interaction energy, here we present a unified approach for treating both shape memory effect and pseudoelasticity, taking into account another state of phase, i.e., twinned martensite. Analytical models formulated using experimental data will be compared with experimental constitutive relationships. A god curve-fitting to complicated experimental stress-strain curves is also presented through a higher-order polynomial representation of the interaction energy function.

Paper Details

Date Published: 14 June 2000
PDF: 11 pages
Proc. SPIE 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics, (14 June 2000); doi: 10.1117/12.388230
Show Author Affiliations
Hisashi Naito, Nagoya Univ. (Japan)
Yuji Matsuzaki, Nagoya Univ. (Japan)
Tadashige Ikeda, Nagoya Univ. (Japan)

Published in SPIE Proceedings Vol. 3992:
Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics
Christopher S. Lynch, Editor(s)

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