Non-velocity based analysis of passive ultrasonic signal for source location detection in composite plates: a pilot study
Paper
Paper/Presentation Title | Non-velocity based analysis of passive ultrasonic signal for source location detection in composite plates: a pilot study |
---|---|
Presentation Type | Paper |
Authors | Hafizi, Z. M. (Author), Epaarachchi, J. (Author), Nizwan, C. K. E. (Author) and Lau, K. T. (Author) |
Journal or Proceedings Title | IOP Conference Series: Materials Science and Engineering |
Journal Citation | 36 (1) |
Article Number | 012008 |
Number of Pages | 8 |
Year | 2012 |
Publisher | IOP Publishing |
Place of Publication | Bristol, United Kingdom |
ISSN | 1757-8981 |
1757-899X | |
Digital Object Identifier (DOI) | https://doi.org/10.1088/1757-899X/36/1/012008 |
Web Address (URL) of Paper | http://iopscience.iop.org/1757-899X/36/1/012008 |
Conference/Event | 1st International Conference of Mechanical Engineering Research (ICMER 2011) |
Event Details | 1st International Conference of Mechanical Engineering Research (ICMER 2011) Parent International Conference on Mechanical Engineering Research (ICMER) Delivery In person Event Date 05 to end of 07 Dec 2011 Event Location Kuantan, Malaysia |
Abstract | Acoustic Emission (AE) evaluation is one of the fast growing non-destructive techniques, owing to its ability to reveal in advance of any impending failure of a building structure. This capability makes the so called passive ultrasonic technique a very good tool in structural health monitoring; especially for composite structures. In metallic structures, AE technique is currently well established and able to provide accurate and consistent result. However, in composites, the challenge for a reliable AE results is huge due to the orthotropic behaviour of the materials. The present study investigates the energy attenuation of AE signals in thin composite plate and utilized the attenuation pattern into non-velocity based source location detection. Standard Hsu-Nielsen source location testing was applied on a glass fibre epoxy resin laminate and a single channel AE system was used to acquire AE signals with the support from AEWin software for signal analysis. A linear source location algorithm utilizing AE signals energy attenuation patterns was developed and tested for the composite specimen. The results revealed that the source location algorithm provides reasonably accurate results of source location for glass fibre epoxy resin laminate. |
Keywords | composites; epoxies; glasses; signal analysis; signal attenuation; structural health monitoring; ultrasonics |
ANZSRC Field of Research 2020 | 401799. Mechanical engineering not elsewhere classified |
400510. Structural engineering | |
510301. Acoustics and acoustical devices; waves | |
Public Notes | Files associated with this item cannot be displayed due to copyright restrictions. |
Byline Affiliations | Faculty of Engineering and Surveying |
Centre of Excellence in Engineered Fibre Composites | |
University of Malaysia Pahang, Malaysia | |
Institution of Origin | University of Southern Queensland |
https://research.usq.edu.au/item/q1yw3/non-velocity-based-analysis-of-passive-ultrasonic-signal-for-source-location-detection-in-composite-plates-a-pilot-study
1951
total views10
total downloads2
views this month0
downloads this month