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Some Durability Issues Associated with the Use of Shapememory Alloy 'Smart' Composites

Published online by Cambridge University Press:  16 February 2011

Clifford M. Friend ,
Neil B. Morgan  and
Vivienne D. Wise
Clifford M. Friend
Affiliation:
Smart Materials Group, Cranfield University, Shrivenham Campus, Swindon, England
Neil B. Morgan
Affiliation:
Smart Materials Group, Cranfield University, Shrivenham Campus, Swindon, England
Vivienne D. Wise
Affiliation:
Smart Materials Group, Cranfield University, Shrivenham Campus, Swindon, England
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Abstract

This paper presents the results from an experimental study on the durability of embedded Shape-Memory Alloy (SMA) hybrid composites. It shows that the cyclic actuation of such composites can be degraded due to the accumulation of internal damage within the host composite structure. This damage results from thermal effects within the host composite, and from mismatch in the strain capacities of the actuators and structural composite. The implications of this data for the design of embedded SMA actuator 'smart' composites is discussed.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 360 , 1994 , 513
Copyright
Copyright © Materials Research Society 1995

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