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Proceedings Paper

Nonlinear dynamic behavior of a shape memory alloy
Author(s): Manuel Collet; Emmanuel Foltete; Ludek Heller; Christian Lexcellent
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Paper Abstract

Shape Memory Alloys are now well recognized as potential materials for structural control. Even if some applications already exist, the dynamic behaviour of SMAs has not been clearly explained. This paper focuses on the study of a martensitic Cu Al Be beam under dynamical loading. A simplification of the thermomechanical model is necessary to build a Finite Element formulation able to perform dynamic simulations. In a first part, we study a classical tensile test in order to choose the way the model should be simplified. In a second part, dynamic test on the cantilever beam are presented and discussed. Wavelet techniques are also used to underline non linear behavior of this material in showing the dependence of the non linear natural frequency on the vibration magnitude.

Paper Details

Date Published: 21 July 2004
PDF: 8 pages
Proc. SPIE 5387, Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics, (21 July 2004); doi: 10.1117/12.540416
Show Author Affiliations
Manuel Collet, Univ. de Franche-Comte (France)
Emmanuel Foltete, Univ. de Franche-Comte (France)
Ludek Heller, Univ. de Franche-Comte (France)
Christian Lexcellent, Univ. de Franche-Comte (France)

Published in SPIE Proceedings Vol. 5387:
Smart Structures and Materials 2004: Active Materials: Behavior and Mechanics
Dimitris C. Lagoudas, Editor(s)

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