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.…
Autor*innen: | Mate GaalORCiD, Jürgen Bartusch, Elmar Dohse, Marc Kreutzbruck, J. M. Amos |
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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 |