Modal acoustic emission investigation for progressive failure monitoring in thin composite plates under tensile test
Article
Article Title | Modal acoustic emission investigation for progressive failure monitoring in thin composite plates under tensile test |
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ERA Journal ID | 8144 |
Article Category | Article |
Authors | Hafizi, Mohd Zohari (Author), Epaarachchi, Jayantha Ananda (Author) and Lau, K. T. (Author) |
Editors | Chiu, W. K. and Galea, S. C. |
Journal Title | Key Engineering Materials |
Journal Citation | 558 (558), pp. 65-75 |
Number of Pages | 11 |
Year | 2013 |
Place of Publication | Zurich, Switzerland |
ISSN | 1013-9826 |
Digital Object Identifier (DOI) | https://doi.org/10.4028/www.scientific.net/KEM.558.65 |
Web Address (URL) | http://www.materialsaustralia.com.au/SHM2012 |
Abstract | Acoustic Emission (AE) is one of the popular non-destructive (NDT) techniques and its applications have increased subsequently for Structural Health Monitoring (SHM). During the past few decades, many successful research works have evidently shown remarkable capability of AE for early damage detection of composite materials. This paper investigated the application of single channel acoustic emission (AE) source location detection method, utilizing time-frequency analysis for thin composite plates. Besides, failure characterization using Modal Acoustic Emission (MAE) also presented. Modal analysis of AE signals or MAE can offers a better theoretical background for acoustic emission analysis; which is necessary to get more qualitative and quantitative result and therefore, increase the reliability of early failure characterization for thin composite plates. For this study, tensile tests were conducted on the glass fiber epoxy resin specimen with small notch; and four channels of acoustic emission system were used to acquire AE signals. The results revealed that in practical, single channel AE source location was difficult to be done. Also, the study has successfully showed that matrix cracks and fiber fracture produced AE signals which dominated by symmetric wave mode. |
Keywords | modal acoustic emission; location detection; glass fiber reinforced composites |
ANZSRC Field of Research 2020 | 400510. Structural engineering |
400607. Signal processing | |
401602. Composite and hybrid materials | |
401702. Dynamics, vibration and vibration control | |
Public Notes | © (2013) Trans Tech Publications, Switzerland. |
Byline Affiliations | Centre of Excellence in Engineered Fibre Composites |
Event | 4th Asia-Pacific Workshop on Structural Health Monitoring (APWSHM 2012) |
Series | Key Engineering Materials |
Institution of Origin | University of Southern Queensland |
ISBN | 9783037857151 |
Book Title | Structural health monitoring: research and applications |
Event Details | 4th Asia-Pacific Workshop on Structural Health Monitoring (APWSHM 2012) Parent Asia-Pacific Workshop On Structural Health Monitoring Event Date 05 to end of 07 Dec 2012 Event Location Melbourne, Australia |
https://research.usq.edu.au/item/q1vq1/modal-acoustic-emission-investigation-for-progressive-failure-monitoring-in-thin-composite-plates-under-tensile-test
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