Abstract

A new method of sensing structural integrity using piezoceramic transducers is presented. Capacitance values of piezoceramic patches are dependent upon the prescribed mechanical boundary conditions. This dependence can be exploited to monitor the rudimentary health of a structure by monitoring the capacitance of an attached piezoceramic patch. An adaptive piezoelectric sensoriactuator is used because of its inherent ability to monitor the capacitance of piezoelectric transducers in real-time. A simple experiment is performed where the device is used to successfully detect a change in boundary conditions for a composite beam piezostructure.

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