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Journal of Intelligent Material Systems and Structures
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1045389X07077901v1
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Shape Memory Alloy Hybrid Composite Plates for Shape and Stiffness Control

Federica Daghia

DISTART, Università di Bologna, viale Risorgimento 2, 40136 Bologna, Italy, federica.daghia{at}mail.ing.unibo.it

Daniel J. Inman

CIMSS, Virginia Polytechnic Institute and State University, 310 Durham Hall Blacksburg, VA - 24061, USA

Francesco Ubertini

DISTART, Università di Bologna, viale Risorgimento 2, 40136 Bologna, Italy

Erasmo Viola

DISTART, Università di Bologna, viale Risorgimento 2, 40136 Bologna, Italy

Shape memory alloy hybrid composite plates are `intelligent' structures whose shape or stiffness is actively modified by embedded shape memory alloy fibers. In this work, the behavior of such structures is investigated numerically and experimentally. A finite element model which separately represents the host structure and the fibers in a two-dimensional setting is proposed as a simple tool to predict the structural behavior in stiffness and shape control. The shape control configuration is used to validate the model experimentally since it is the most sensitive to the choice of the geometrical and mechanical model parameters.

Key Words: Shape memory alloys • hybrid composites • shape and stiffness control • finite element model.

This version was published on May 1, 2008

Journal of Intelligent Material Systems and Structures, Vol. 19, No. 5, 609-619 (2008)
DOI: 10.1177/1045389X07077901
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