Journal article
Localization of multiple acoustic emission events occurring closely in time in thin-walled pipes using sparse reconstruction
Journal of intelligent material systems and structures, v 29(11), pp 2362-2373
01 Jul 2018
Abstract
A sparse reconstruction approach capable of localizing multiple acoustic emission events is proposed. The approach is specifically designed for localizing events that occur closely in time, where triangulation methods can fail. To perform localization, the approach uses information contained in the entire length of acoustic emission signals and is implemented using the matching pursuit algorithm. Implementation is considered theoretically for large-diameter thin-walled pipes. The approach is validated on experimental data of simulated acoustic emission events in a thin-walled pipe. The experimental data correspond to helical guided ultrasonic waves generated by standard pencil lead breaks (Hsu-Nielsen sources) on its outer surface. The acoustic emission signals are recorded by sparsely distributed low-profile piezoelectric transducers instrumented on the outer surface. Experimental examples are presented for the failure of the triangulation method when multiple sources are present while highlighting the capabilities of the proposed technique. It is demonstrated that the approach possesses the ability of localizing multiple events occurring closely in time. An example is also presented for the localization of a more commonly encountered isolated acoustic emission event.
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Details
- Title
- Localization of multiple acoustic emission events occurring closely in time in thin-walled pipes using sparse reconstruction
- Creators
- Brennan Dubuc - The University of Texas at AustinArvin Ebrahimkhanlou - The University of Texas at AustinSalvatore Salamone - The University of Texas at Austin
- Publication Details
- Journal of intelligent material systems and structures, v 29(11), pp 2362-2373
- Publisher
- Sage
- Number of pages
- 12
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Civil, Architectural, and Environmental Engineering
- Web of Science ID
- WOS:000438587000005
- Scopus ID
- 2-s2.0-85047390654
- Other Identifier
- 991021890003304721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Web of Science research areas
- Materials Science, Multidisciplinary