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Proceedings Paper

Influence of processing conditions on actuation properties of adaptive hybrid composites
Author(s): J. Grando; Michelle Salvia
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Paper Abstract

Adaptive hybrid composites are materials in which actuators are embedded into polymer matrix composites. One particular class of these actuators are shape memory alloys. Thin wires ((phi) equals 200 micrometers ) of Nickel-Titanium-Copper (nitinol) were incorporated into a glass-epoxy unidirectional laminate during lay-up. Then the whole structure was subjected to different curing procedures. The interfacial shear strength between the matrix and the nitinol wires in various structural states was determined by a micromechanical test involving the interface directly--the drop test. Clamped-free (cantilever) beam method was used to evaluate the effect of actuation by heating the nitinol wires embedded into the composite. The comparison between the different composites points out first the leading role of the interfacial shear strength. On the other hand, it can be noted the occurrence of a self-trained two way shape memory effect.

Paper Details

Date Published: 26 April 1996
PDF: 5 pages
Proc. SPIE 2779, 3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials, (26 April 1996); doi: 10.1117/12.237173
Show Author Affiliations
J. Grando, Ecole Centrale de Lyon/CNRS (France)
Michelle Salvia, Ecole Centrale de Lyon/CNRS (France)


Published in SPIE Proceedings Vol. 2779:
3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials
Pierre Francois Gobin; Jacques Tatibouet, Editor(s)

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