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Nonlinear Ultrasonic Damage Response to Excitation Strength and Position
2006 (English)Conference paper (Other academic) PublishedAlternative title
Olinjä ultraljudsskadesvar på exiteringsstyrka och läge (Swedish)
Abstract [en]

A laminated carbon-fibre reinforced divinylcell plate is tested by a nonlinear ultrasonic technique for damage positioning. A high-frequency air-coupled transducer plate is placed above the plate surface, and a low-frequency contact source is fixed at one end. The high-frequency wave field fulfills the open resonator criteria making it localized inside the plate. The nonlinear damage response position is obtained by moving the high-frequency source on either side, having fixed sensors on both plate sides. Further, the nonlinear damage response is measured to change approximately linear with increase in high-frequency, or low-frequency, amplitude.

Place, publisher, year, edition, pages
Keyword [en]
Nonlinear nondestructive testing, Acoustic open resonator, Air-coupled transducers
National Category
Applied Mechanics
URN: urn:nbn:se:bth-9282Local ID: diva2:837076
IEICE Ultrasonic Meeting, Nagoya
Available from: 2012-09-18 Created: 2007-03-05 Last updated: 2015-06-30Bibliographically approved

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Applied Mechanics

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ReferencesLink to record
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