Acoustic Emission in Wide Composite Specimens

JJ Scholey, PD Wilcox, CK Lee, MI Friswell, MR Wisnom

Research output: Contribution to journalArticle (Academic Journal)peer-review

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.
Translated title of the contributionAcoustic Emission in Wide Composite Specimens
Original languageEnglish
Pages (from-to)325 - 332
Number of pages8
JournalAdvanced Materials Research
Volume13-14
Publication statusPublished - Feb 2006

Bibliographical note

Publisher: Trans Tech Publications
Other: 82.45.22.11-17/04/07, 11:35:31

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