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Title
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On-line damage detection on a wing panel using transmission of multisine ultrasonic waves
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Author
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Abstract
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| Fatigue damage of materials is an important problem that causes a lot of failures in mechanical systems. It is very important to detect this fatigue as early as possible. Nowadays, most of the nondestructive testing methods are off-line: the inspection is carried out periodically and in some cases the device has to be dismounted. So we risk to exceed, for example, the critical length of a crack. In this article. an on-line method based on the variation in transmission of a multisine ultrasonic wave during opening and closing of a surface crack is developed. As a validation experiment, a propagation fatigue crack in a sinusoidally loaded wing panel is considered. It will be shown that the on-line method is very sensitive to crack propagation. (c) 2007 Elsevier Ltd. All rights reserved. |
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Language
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English
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Source (journal)
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NDT and E international: the independant non-destructive testing and evaluation. - London
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Publication
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London
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2008
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ISSN
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0963-8695
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DOI
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10.1016/J.NDTEINT.2007.10.012
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Volume/pages
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41
:4
(2008)
, p. 312-317
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ISI
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000255151600010
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Full text (Publisher's DOI)
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