Air-Coupled Ultrasonic Beam Transmission Applied to Material Characterization

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dc.contributor.author Zhang, Han
dc.contributor.author Chimenti, Dale
dc.date 2018-02-14T09:21:53.000
dc.date.accessioned 2020-06-30T06:50:47Z
dc.date.available 2020-06-30T06:50:47Z
dc.date.copyright Fri Jan 01 00:00:00 UTC 1999
dc.date.issued 1999
dc.description.abstract <p>Lamb waves have been widely used in ultrasonic NDE to characterize material properties or assess material quality [1], Of the previous work on materials using phase-matched fluid-loaded coupling, most has been performed in water-coupled testing [2]. With the development of efficient non-contacting ultrasonic air-coupled transducers [3], it has become feasible to apply air-coupled ultrasonic methods to NDE. Because of the low signal noise ratio resulting from the large impedance mismatch between the air and the solid object, most work of air-coupled (AC) ultrasound is qualitative, with defects in plates and C-scan imaging being the principal objectives. As demonstrated by Safaeinili, et al. [4], however, it is possible to characterize elastic plates, both isotropic and anisotropic, by using AC ultrasound, despite the signal-to-noise ratio (SNR) penalty.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1999/allcontent/162/
dc.identifier.articleid 4170
dc.identifier.contextkey 5824050
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1999/allcontent/162
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/61591
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1999/allcontent/162/1999_Zhang_AirCoupled.pdf|||Fri Jan 14 20:56:22 UTC 2022
dc.source.uri 10.1007/978-1-4615-4791-4_163
dc.subject.keywords CNDE
dc.subject.keywords Aerospace Engineering
dc.title Air-Coupled Ultrasonic Beam Transmission Applied to Material Characterization
dc.type event
dc.type.genre article
dspace.entity.type Publication
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