Crack detection in plates using coupled Rayleigh-like waves
Crack detection in plates using coupled Rayleigh-like waves
- Neue Suche nach: Masserey, B.
- Neue Suche nach: Fromme, P.
- Neue Suche nach: Masserey, B.
- Neue Suche nach: Fromme, P.
The use of coupled Rayleigh-like waves in aluminum plates with a view towards the non-destructive inspection of aircraft structures has been investigated experimentally and theoretically. Rayleigh-like waves transfer energy between both plate surfaces with a characteristic distance called the beatlength. A simple, analytical model and finite difference calculations are used to describe the reflection of Rayleigh-like waves at surface defects. Good agreement has been achieved with experimental results using either standard pulse-echo or laser interferometer measurements. The sensitivity for the detection and localization of small defects on both plate surfaces has been found to be very good. Selecting appropriate excitation frequency and position, a significant part of the energy of the Rayleigh-like wave can be transmitted past surface features, allowing the remote detection of defects in areas where access is restricted.
Dokumentinformationen
Crack detection in plates using coupled Rayleigh-like waves
Rissnachweis in Platten mittels angekoppelten Rayleigh ähnlichen Wellen
2008
8 Seiten, 7 Bilder, 11 Quellen
Aufsatz (Konferenz)
Datenträger
Englisch
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