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Effects of branched defect geometry on the propagation of Rayleigh waves
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Hernandez-Valle, Francisco, Clough, A. R., Dutton, B. (Ben) and Edwards, R. S. (Rachel S.) (2014) Effects of branched defect geometry on the propagation of Rayleigh waves. In: 40th review of progress in quantitative nondestructive evaluation : Incorporating the 10th international conference on Barkhausen noise and micromagnetic testing, Baltimore, Maryland, USA, 21–26 July 2013. Published in: AIP Conference Proceedings, 1581 pp. 389-396. ISBN 978735412118. doi:10.1063/1.4864846 ISSN 0094-243X.
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Official URL: http://dx.doi.org/10.1063/1.4864846
Abstract
Rayleigh waves can be used for characterisation of surface-breaking defects, giving a measure of the depth and the angle of propagation of a defect with simple (i.e. single crack) geometry. However, surface breaking defects will often grow with a more complicated geometry. We present here results of experimental measurements using laser generated and detected Rayleigh waves on aluminium samples containing machined slots with varied branched geometries. The signal enhancement found in the near-field, and the reflection and transmission of different wavemodes can be used to position the defect and gain an idea of its geometry. This research can be applied to monitor components prone to developing stress corrosion cracking (branched-like defects). Results are shown of the near-field interactions of Rayleigh waves with this type of cracking in stainless steel pipe samples, in order to resolve the spatial extent and geometric alignment of those defects.
| Item Type: | Conference Item (Paper) | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | AIP Conference Proceedings | ||||
| Publisher: | American Institute of Physics | ||||
| ISBN: | 978735412118 | ||||
| ISSN: | 0094-243X | ||||
| Editor: | Chimenti, Dale E. and Bond, Leonard J. and Thompson, Donald O. | ||||
| Official Date: | 18 February 2014 | ||||
| Dates: |
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| Volume: | 1581 | ||||
| Page Range: | pp. 389-396 | ||||
| DOI: | 10.1063/1.4864846 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Conference Paper Type: | Paper | ||||
| Title of Event: | 40th review of progress in quantitative nondestructive evaluation : Incorporating the 10th international conference on Barkhausen noise and micromagnetic testing | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Baltimore, Maryland, USA | ||||
| Date(s) of Event: | 21–26 July 2013 |
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