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

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

doi:10.1016/S0041-624X(96)00083-2

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

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

Electronic And Electrical Engineering

Research output: Contribution to journal › Article › peer-review

16 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.

Original language	English
Pages (from-to)	825-833
Number of pages	9
Journal	Ultrasonics
Volume	34
Issue number	8
DOIs	https://doi.org/10.1016/S0041-624X(96)00083-2
Publication status	Published - Dec 1996

Keywords

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

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

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title = "Polymer composite material characterisation using a laser/air-transducer system",

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.",

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AU - Wright, WMD

AU - Hutchins, D.A.

AU - Gachagan, Anthony

AU - Hayward, Gordon

PY - 1996/12

Y1 - 1996/12

N2 - 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.

AB - 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.

KW - C-scan imaging

KW - lamb wave tomography

KW - air-coupled transducer

KW - non-contact ultrasound

KW - fibre-reinforced composites

U2 - 10.1016/S0041-624X(96)00083-2

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

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SP - 825

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JO - Ultrasonics

JF - Ultrasonics

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