Salta al contenuto principale
Passa alla visualizzazione normale.

DONATELLA CERNIGLIA

Non-contact ultrasonic inspection of skin/core bond in honeycomb with lamb waves

  • Autori: Cosenza, C; Cerniglia, D; Djordjevic, B
  • Anno di pubblicazione: 2002
  • Tipologia: eedings
  • Parole Chiave: Engineering (all)
  • OA Link: http://hdl.handle.net/10447/201741

Abstract

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.