Deformation behavior of shape memory alloys in various temperature ranges

Hisashi Naito; Yuji Matsuzaki; Tadashige Ikeda

doi:10.1117/12.388230

14 June 2000 Deformation behavior of shape memory alloys in various temperature ranges

Hisashi Naito, Yuji Matsuzaki, Tadashige Ikeda

Proceedings Volume 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics; (2000) https://doi.org/10.1117/12.388230
Event: SPIE's 7th Annual International Symposium on Smart Structures and Materials, 2000, Newport Beach, CA, United States

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.

Citation Download Citation

Hisashi Naito, Yuji Matsuzaki, and Tadashige Ikeda "Deformation behavior of shape memory alloys in various temperature ranges", Proc. SPIE 3992, Smart Structures and Materials 2000: Active Materials: Behavior and Mechanics, (14 June 2000); https://doi.org/10.1117/12.388230

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