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Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Impact on the mechanical integrity of carbon fibre reinforced composite plates incorporating embedded piezoceramic transducers

Gachagan, A. and Hailu, B. and McNab, A. and Lang, W. and Hendry, J. and Hayward, G. and Banks, W. (2003) Impact on the mechanical integrity of carbon fibre reinforced composite plates incorporating embedded piezoceramic transducers. In: 30th Annual Review of Progress in Quantitative Nondestructive Evaluation, 2003-07-27 - 2003-08-01.

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Abstract

This paper describes the integration of piezoelectric ceramic transducers within a carbon fibre reinforced polymer composite plate for the generation of a pure, zeroth order symmetric ultrasonic Lamb wave. The lateral dimensions of the transducers were in the order of 5mm - 12mm, which were considered suitable for practical embedding purposes. The composite plate configuration used throughout is an uni-directional structure, with the transducer embedded exactly within the centre. The mechanical integrity of composite plates was measured through both conventional c-scans and four point flexural tests. Importantly, degradation of the flexural modulus is shown to be less than 10% for the embedded transducer configuration. Finally, the transducer was observed to continue operating in pulse-echo mode when a load in excess of 3500N was applied to the plate structure.