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Journal of Composite Materials
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Material and Structural Characterization of the Dynamic Behavior of Shape Memory Alloy Reinforced Composites

S. De Santis

Department de Genie Mécanique, Ecole Polytechnique de Montreal, Case Postale 6079, Succ. Centre Ville, Montreal, Canada, H3C 3A 7

F. Trochu

Department de Genie Mécanique, Ecole Polytechnique de Montreal, Case Postale 6079, Succ. Centre Ville, Montreal, Canada, H3C 3A 7

G. Ostiguy

Department de Genie Mécanique, Ecole Polytechnique de Montreal, Case Postale 6079, Succ. Centre Ville, Montreal, Canada, H3C 3A 7

H. Sol

Department d'Analyse Structurale, University de Bruxelles (VUB), Pleinlaan 2, B-1050, Bruxelles, Belgique

J. M. Berthelot

Institut d'Acoustique et de Mécanique, University du Maine, BP 535, 72017 Le Mans Cedex, France

The purpose of this article is to characterize elastic and dissipative properties of Shape Memory Alloy (SMA) fiber reinforced composite materials. These properties are then used to evaluate the dynamic characteristics of a structure (modal parameters) using finite elements. A laminate level procedure is used to evaluate the complex bending stiffnesses of CuZnAl fiber reinforced composites. The modal strain energy finite element method is implemented to calculate the modal parameters of composite structures with different geometries and boundary conditions. Calculated results are compared to those obtained by experimental modal analysis. The study outlines the relatively good agreement of natural frequencies and the difficulties encountered in evaluating damping in these types of composites at both the experimental (modal analysis) as well as the numerical (finite element) levels.

Key Words: damping • modal damping prediction • composites • characterization • complex moduli • shape memory alloys • smart structures

Journal of Composite Materials, Vol. 31, No. 19, 1985-1998 (1997)
DOI: 10.1177/002199839703101905
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