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

A. Gachagan, B. Hailu, A. McNab, W. Lang, J. Hendry, G. Hayward, W. Banks

Research output: Contribution to conferencePaper


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.
Original languageEnglish
Number of pages8
Publication statusPublished - Jul 2003
Event30th Annual Review of Progress in Quantitative Nondestructive Evaluation - Green Bay, United States
Duration: 27 Jul 20031 Aug 2003


Conference30th Annual Review of Progress in Quantitative Nondestructive Evaluation
Country/TerritoryUnited States
CityGreen Bay


  • impact
  • mechanical integrity
  • carbon fibre
  • reinforced composite plates
  • embedded piezoceramic transducers
  • mechanical strength
  • embedded systems
  • piezoelectric transducers
  • nondestructive testing
  • plates (structures)
  • carbon fibre reinforced composites
  • composite materials

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