Acoustic emission in wide composite specimens

J. J. Scholey*, P. D. Wilcox, C. K. Lee, M. Friswell, M. R. Wisnom

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

21 Citations (Scopus)

Abstract

Acoustic emission (AE) is an attractive technique for the structural health monitoring (SHM) of aerospace systems. To reach its full potential in this role a quantitative approach must be adopted to study damage mechanisms in composite materials.

In this paper, some of the practical issues regarding acoustic emission testing in composites are addressed. A model describing Lamb wave propagation through plates is described and used to make phase velocity and attenuation measurements in both aluminium and carbon fibre reinforced plastic plates. Results are then implemented in the frequency domain to conduct an experimental study of normal incidence Lamb wave reflections. Comparisons are made with finite element analysis (FEA) models with good results.

Original languageEnglish
Title of host publicationAcoustic Emission Testing
EditorsR Pullin, KM Holford, SL Evans, JM DulieuBarton
Place of PublicationSTAFA-ZURICH
PublisherTrans Tech Publications Inc
Pages325-332
Number of pages8
ISBN (Print)0-87849-420-0
Publication statusPublished - 2006
Event27th European Conference on Acoustic Emission Testing - Cardiff
Duration: 20 Sep 200622 Sep 2006

Publication series

NameADVANCED MATERIALS RESEARCH
PublisherTRANS TECH PUBLICATIONS LTD
Volume13-14
ISSN (Print)1022-6680

Conference

Conference27th European Conference on Acoustic Emission Testing
CityCardiff
Period20/09/0622/09/06

Keywords

  • attenuation
  • reflection
  • phase velocity
  • acoustic emission
  • composite

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