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Air-coupled ultrasonic testing of metal adhesively bonded joints using cellular polypropylene transducers

  • Adhesively bonded aluminum components have been widely used in the aerospace industry for weight-efficient and damage-tolerant structures. Automated squirter jet immersion ultrasonic testing is a common inspection technique to assure the bond integrity of large, contoured assemblies. However, squirter jet inspection presents several limitations in scanning speed, related to water splash noise over protruding stiffeners and splash interference crosstalk in multi-channel inspection systems. Air-coupled ultrasonic testing has been evaluated as an alternative, possibly offering the benefits of increased throughput by enabling higher speeds, and eliminating the contamination concerns and maintenance issues of water couplant systems. Adhesive joints of multi-layer aluminum plates with artificial disbonds were inspected with novel air-coupled ultrasonic probes based on cellular polypropylene. Disbonds of various sizes were engineered in several multi-layer configurations and at variousAdhesively bonded aluminum components have been widely used in the aerospace industry for weight-efficient and damage-tolerant structures. Automated squirter jet immersion ultrasonic testing is a common inspection technique to assure the bond integrity of large, contoured assemblies. However, squirter jet inspection presents several limitations in scanning speed, related to water splash noise over protruding stiffeners and splash interference crosstalk in multi-channel inspection systems. Air-coupled ultrasonic testing has been evaluated as an alternative, possibly offering the benefits of increased throughput by enabling higher speeds, and eliminating the contamination concerns and maintenance issues of water couplant systems. Adhesive joints of multi-layer aluminum plates with artificial disbonds were inspected with novel air-coupled ultrasonic probes based on cellular polypropylene. Disbonds of various sizes were engineered in several multi-layer configurations and at various depths. Results were compared with squirter jet immersion and conventional piezoelectric transducer designs in terms of scan contrast, resolution and inspection time.zeige mehrzeige weniger

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Metadaten
Autor*innen:Mate GaalORCiD, Jürgen Bartusch, Elmar Dohse, Marc Kreutzbruck, J. M. Amos
Persönliche Herausgeber*innen:D.E. Chimenti, L.J. Bond, D.O. Thompson
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):40th Annual review of progress in quantitative nondestructive evaluation (Proceedings)
Jahr der Erstveröffentlichung:2014
Herausgeber (Institution):American institute of physics (AIP)
Verlag:AIP Publishing
Jahrgang/Band:1581 33A
Erste Seite:471
Letzte Seite:478
Freie Schlagwörter:Air-coupled; Ferroelectret; Metal bond; Ultrasonic
Veranstaltung:40th Annual review of progress in quantitative nondestructive evaluation
Veranstaltungsort:Baltimore, Maryland, USA
Beginndatum der Veranstaltung:21.07.2013
Enddatum der Veranstaltung:26.07.2013
DOI:10.1063/1.4864857
ISSN:0094-243X
ISBN:978-0-7354-1212-5
ISBN:978-0-7354-1211-8
Bemerkung:
Serientitel: AIP conference proceedings – Series title: AIP conference proceedings
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:20.02.2016
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:15.09.2014
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