Polymer composite material characterisation using a laser/air-transducer system

WMD Wright, D.A. Hutchins, Anthony Gachagan, Gordon Hayward

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

A wide bandwidth 1-3 connectivity piezocomposite air transducer has been used to detect laser-generated ultrasound in a variety of composite materials. Through thickness waveforms in various carbon fibre reinforced polymer (CFRP) composite plates will be presented, as well as a selection of Lamb waves. Signals were also obtained in samples of pultruded glass fibre reinforced composite of different thickness. Using the laser/air-transducer system, images were obtained of machined defects and delaminations by conventional C-scanning methods, and tomographic reconstruction techniques.
LanguageEnglish
Pages825-833
Number of pages9
JournalUltrasonics
Volume34
Issue number8
DOIs
Publication statusPublished - Dec 1996

Fingerprint

Transducers
Polymers
transducers
Lasers
Air
composite materials
air
Composite materials
polymers
lasers
Lamb waves
glass fibers
carbon fibers
Delamination
Glass fibers
Surface waves
Carbon fibers
waveforms
Ultrasonics
bandwidth

Keywords

  • C-scan imaging
  • lamb wave tomography
  • air-coupled transducer
  • non-contact ultrasound
  • fibre-reinforced composites

Cite this

Wright, WMD ; Hutchins, D.A. ; Gachagan, Anthony ; Hayward, Gordon. / Polymer composite material characterisation using a laser/air-transducer system. In: Ultrasonics. 1996 ; Vol. 34, No. 8. pp. 825-833.
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Polymer composite material characterisation using a laser/air-transducer system. / Wright, WMD; Hutchins, D.A.; Gachagan, Anthony; Hayward, Gordon.

In: Ultrasonics, Vol. 34, No. 8, 12.1996, p. 825-833.

Research output: Contribution to journalArticle

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AU - Wright, WMD

AU - Hutchins, D.A.

AU - Gachagan, Anthony

AU - Hayward, Gordon

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KW - lamb wave tomography

KW - air-coupled transducer

KW - non-contact ultrasound

KW - fibre-reinforced composites

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DO - 10.1016/S0041-624X(96)00083-2

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