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Air-coupled ultrasonic NDE of bonded aluminum lap joints
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UNSPECIFIED (1997) Air-coupled ultrasonic NDE of bonded aluminum lap joints. ULTRASONICS, 35 (1). pp. 1-6. ISSN 0041-624X
Full text not available from this repository.Abstract
This paper describes an investigation into the feasibility of using wideband air-coupled ultrasonic transducers for evaluating the integrity of bonded aluminum lap joints. Micromachined capacitance transducers are used to generate and detect ultrasonic Lamb waves in aluminum lap-joints through an intervening air layer. The transmission of Lamb waves through the bond is affected by the bond's local state, such that scanning a pair of air-transducers allows images to be produced either with the transducers on opposite sides of the plate, or on the same side. It is shown that defects in the bond-line can be detected and imaged by such a non-contract system. Confirmation of defect positions are obtained by comparing the results of the air-coupled scans to a conventional immersion ultrasonic C-scan.
| Item Type: | Journal Article |
|---|---|
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) R Medicine |
| Journal or Publication Title: | ULTRASONICS |
| Publisher: | ELSEVIER SCIENCE BV |
| ISSN: | 0041-624X |
| Date: | February 1997 |
| Volume: | 35 |
| Number: | 1 |
| Number of Pages: | 6 |
| Page Range: | pp. 1-6 |
| Publication Status: | Published |
| URI: | http://wrap.warwick.ac.uk/id/eprint/17861 |
Data sourced from Thomson Reuters' Web of Knowledge
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