Behaviors of Shape Memory Alloy Wire Embedded Smart Composite Skins and Actuators

Abstract:

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The shape changes by bending and twisting of a SMA/composite panel with embedded SMA wire actuators controlled by both electric resistive heating and passive elastic tailoring are investigated to realize the morphing wing of unmanned aerial vehicles. Three-dimensional finite element formulations are derived and used to analyze the behaviors of the SMA/composite smart structures. The numerical results show that the shapes of the SMA/composite panels can be controlled by judicious choices of control temperatures, SMA angles, and elastic tailoring. To validate the analytical results, two SMA-embedded curved panels are fabricated and then, their changes in shape are measured by a laser optical sensor when SMA is activated by electrically resistive heating. Both results show excellent correlation.

Info:

Periodical:

Key Engineering Materials (Volumes 261-263)

Edited by:

Kikuo Kishimoto, Masanori Kikuchi, Tetsuo Shoji and Masumi Saka

Pages:

1463-1468

DOI:

10.4028/www.scientific.net/KEM.261-263.1463

Citation:

C. Kim et al., "Behaviors of Shape Memory Alloy Wire Embedded Smart Composite Skins and Actuators", Key Engineering Materials, Vols. 261-263, pp. 1463-1468, 2004

Online since:

April 2004

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Price:

$35.00

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