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Listening to the world break up

Thick film piezoelectrics are being integrated into glass fibre reinforced composite materials to act as acoustic emission sensors for detecting failure of composite structures.

Thick film piezoelectrics are being integrated into glass fibre reinforced composite materials to act as acoustic emission sensors for detecting failure of composite structures.

University of Surrey researchers have successfully demonstrated that the individual polymer matrix failure events can be detected by the piezo-sensors and by using multiple sensors, an indication of the location of failure can be obtained. Due to the small size of the sensors, their presence has been shown not to affect the overall strength of the composite, providing a real opportunity for integrated structural health monitoring.

For further information, contact r.dorey@surrey.ac.uk.