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Discriminating fiber-reinforced plastic signatures related to specific failure mechanisms: using self-organizing maps and fuzzy C-Means
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Li, XuQin, Ramirez, Carlos, Hines, Evor L., Leeson, Mark S., 1963-, Purnell, Phil and Pharaoh, Mark W. (2008) Discriminating fiber-reinforced plastic signatures related to specific failure mechanisms: using self-organizing maps and fuzzy C-Means. In: Intelligent Systems: Techniques and Applications. Shaker Publishing, Maastricht, The Netherlands, pp. 249-286. ISBN 978-90-423-0345-4
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Official URL: http://www2.warwick.ac.uk/fac/sci/eng/staff/msl/pu...
Abstract
Acoustic Emission (AE) can be used to discriminate the different types of damage occurring in composite materials, because any AE signal contains useful information about the damage mechanisms. A major issue in the use of the AE technique is how to discriminate the AE signatures which are due to the different damage mechanisms. Conventional studies have focused on the analysis of different parameters of such signals, say the frequency. But in previous publications where the frequency is employed to differentiate between events, only one frequency is considered and this frequency was not enough to thoroughly describe the behavior of the composite material. So we introduced the second frequency. A fast Fourier transform (FFT) is then applied to the signals resulting from the two frequencies to discriminate different failure mechanisms. The data was then analyzed using self-organizing map (SOM) and fuzzy C-means (FCM). The results shows that the two approaches have been very successful in discriminating fiber-reinforced plastic signatures related to specific failure mechanisms.
| Item Type: | Book Item |
|---|---|
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Science > Engineering |
| Publisher: | Shaker Publishing |
| Place of Publication: | Maastricht, The Netherlands |
| ISBN: | 978-90-423-0345-4 |
| Book Title: | Intelligent Systems: Techniques and Applications |
| Editor: | Hines, Evor L. and Leeson, Mark S., 1963- and Martínez-Ramón, Manel and Pardo, Matteo and Llobet, Eduard and Iliescu, Daciana and Yang, Jianhua |
| Date: | 2008 |
| Number of Pages: | 38 |
| Page Range: | pp. 249-286 |
| Status: | Peer Reviewed |
| Publication Status: | Published |
| Access rights to Published version: | Open Access |
| URI: | http://wrap.warwick.ac.uk/id/eprint/46508 |
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