6533b7d5fe1ef96bd12653cb
RESEARCH PRODUCT
Non-contact ultrasonic inspection of skin/core bond in honeycomb with lamb waves
B. Boro DjordjevicC. CosenzaDonatella Cernigliasubject
Materials sciencebusiness.industryAcousticsUltrasonic testingSignalCore (optical fiber)Bistatic radarLamb wavesAmplitudeOpticsEngineering (all)HoneycombUltrasonic sensorbusinessdescription
The assessment of skin/core bond in honeycomb samples was carried out by a bistatic ultrasonic non-contact system. Lamb waves were generated by a Nd:YAG pulsed laser and detected by an air-coupled capacitance transducer located in pitch-catch configuration. Periodically spaced line sources, generated on the sample surface using a four element lenticular array, allowed generation of narrow-band directional Lamb waves. Changes in amplitude of the transmitted signal permitted detection of skin/core disbonds.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2003-10-08 |