Impedance Drift due to Thermal Cycling of Macro Fiber Composites

Abstract eng:
This paper summarizes results of a recent experimental investigation concerning the effects of long-term thermal cycling on macro fiber composite actuators. More specifically, this work focuses on how thermal cycling causes impedance measurements to drift and eventually stabilize after many cycles. This impedance drift may lead to significant implications for impedance-based structural health monitoring systems, strain sensing, and precision positioning devices that are implemented in dynamic temperature environments.

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