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

被引：16

作者：

Wright, WMD ^{[1
]}

Hutchins, DA ^{[1
]}

Gachagan, A ^{[1
]}

Hayward, G ^{[1
]}

机构：

[1] UNIV STRATHCLYDE,DEPT ELECT & ELECT ENGN,GLASGOW G1 1XW,LANARK,SCOTLAND

来源：

ULTRASONICS | 1996年 / 34卷 / 08期

关键词：

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

D O I：

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

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

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.

引用

页码：825 / 833

页数：9

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