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Proceedings Paper

Thermal stabilization of shape memory alloy wires
Author(s): Petr Kloucek; Daniel R. Reynolds; Thomas I. Seidman
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Paper Abstract

We show that fast, localized heating and cooling of a Shape Memory material can provide a very effective means of damping vibrational energy. We model the thermally induced pseudo-elastic behavior of a NiTi Shape Memory wire using the variant of Landau-Devonshire potential. We assume that the wire consists of martensitic NiTi single crystal. Dynamically, we model the material response using conservation of momentum and a nonlinear heat equation. We use a frame invariant version of the Fourier heat flux which incorporates dependence on the atomic lattice through the stretch. In the settings used in this paper, the computational experiments confirm that circa 80% of the vibrational energy can be eliminated at the moment of the onset of the thermally induced phase transition.

Paper Details

Date Published: 1 August 2003
PDF: 11 pages
Proc. SPIE 5049, Smart Structures and Materials 2003: Modeling, Signal Processing, and Control, (1 August 2003); doi: 10.1117/12.484058
Show Author Affiliations
Petr Kloucek, Rice Univ. (United States)
Daniel R. Reynolds, Rice Univ. (United States)
Thomas I. Seidman, Univ. of Maryland, Baltimore County (United States)

Published in SPIE Proceedings Vol. 5049:
Smart Structures and Materials 2003: Modeling, Signal Processing, and Control
Ralph C. Smith, Editor(s)

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