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Proceedings Paper

Energy-absorbent composites featuring embedded shape memory alloys
Author(s): W. Zhang; M. Davis; Nikhil A. Koratkar
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Paper Abstract

Shape Memory Alloy (SMA) wires, were integrated within E-glass composite beams. The fiber volume fraction of the SMA material was 10 percent. Several baseline beams were also fabricated. Both the baseline and SMA reinforced composite beams were tested to failure in tension. The SMA reinforced beams were tested in both the martensite phase (room temperature) as well as the austenite phase (75 deg C). The test results indicated that SMA reinforced composites can offer significant increase in the strain-energy absorption prior to failure thereby improving the fracture toughness and crashworthiness for such systems. Significant increase in damping was also observed for the SMA reinforced composite when the wires were transformed from the martensite to the austenite phase by resistive heating.

Paper Details

Date Published: 11 July 2002
PDF: 11 pages
Proc. SPIE 4699, Smart Structures and Materials 2002: Active Materials: Behavior and Mechanics, (11 July 2002); doi: 10.1117/12.474997
Show Author Affiliations
W. Zhang, Rensselaer Polytechnic Institute (United States)
M. Davis, Rensselaer Polytechnic Institute (United States)
Nikhil A. Koratkar, Rensselaer Polytechnic Institute (United States)

Published in SPIE Proceedings Vol. 4699:
Smart Structures and Materials 2002: Active Materials: Behavior and Mechanics
Christopher S. Lynch, Editor(s)

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