Influence of processing conditions on actuation properties of adaptive hybrid composites

J. Grando; Michelle Salvia

doi:10.1117/12.237173

26 April 1996 Influence of processing conditions on actuation properties of adaptive hybrid composites

J. Grando, Michelle Salvia

Proceedings Volume 2779, 3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials; (1996) https://doi.org/10.1117/12.237173
Event: 3rd International Conference on Intelligent Materials, 1996, Lyon, France

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.

Citation Download Citation

J. Grando and Michelle Salvia "Influence of processing conditions on actuation properties of adaptive hybrid composites", Proc. SPIE 2779, 3rd International Conference on Intelligent Materials and 3rd European Conference on Smart Structures and Materials, (26 April 1996); https://doi.org/10.1117/12.237173

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