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Proceedings Paper

Thermomechanical response of shape memory wire (nitinol): constitutive modeling, finite element implementation, and numerical simulation
Author(s): S. P. Arul; T. S. Kulandai samy; V. Selladurai
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Paper Abstract

This paper present a thermo-mechanical one dimensional constitutive model based on the use of strain and temperature as control variables and able to reproduce the basic responses of shape memory material such as super elasticity, shape memory behavior, pseudoelasticity, single variant martensite reorientation process. The model time integration is performed and a robust algorithm for solution of the time discrete model is addressed together with algorithmically consistent tangent. The model is implemented in NITINOL wire (Ni-Ti-6% Cu) which is used to simulate the above mentioned responses. The Thermomechanical response at different temperatures compare well with experimental and numerical results.

Paper Details

Date Published: 14 October 2003
PDF: 6 pages
Proc. SPIE 5062, Smart Materials, Structures, and Systems, (14 October 2003); doi: 10.1117/12.514741
Show Author Affiliations
S. P. Arul, Kongu Engineering College (India)
T. S. Kulandai samy, Kongu Engineering College (India)
V. Selladurai, Coimbatore Institute of Technology (India)


Published in SPIE Proceedings Vol. 5062:
Smart Materials, Structures, and Systems
S. Mohan; B. Dattaguru; S. Gopalakrishnan, Editor(s)

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