Nonlinear Ultrasonic Damage Response to Excitation Strength and Position
2006 (English)Conference paper (Other academic) PublishedAlternative title
Olinjä ultraljudsskadesvar på exiteringsstyrka och läge (Swedish)
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
Nonlinear nondestructive testing, Acoustic open resonator, Air-coupled transducers
IdentifiersURN: urn:nbn:se:bth-9282Local ID: oai:bth.se:forskinfo65A810D342F85C14C1257295002F744AOAI: oai:DiVA.org:bth-9282DiVA: diva2:837076
IEICE Ultrasonic Meeting, Nagoya