Guided and Leaking Interface Waves for NDI/NDE Lee, David Corbly, Dennis 2018-02-16T06:26:17.000 2020-06-30T06:26:15Z 2020-06-30T06:26:15Z 1975
dc.description.abstract <p>Last year at this review one of us pointed out that it was theoretically possible to propagate guided elastic waves along the interface between an installed interference-fit fastener and the parts that it joins, and that these waves might be useful for nondestructive inspection and evaluationl. During discussion of that paper, the speaker was asked if experiments were planned, and another questioner wanted to know what would happen if elastic parameters of fastener and part didn't fall in the comparatively narrow ranges for which unattenuated guided waves can propagate.</p> <p>The speaker replied that experiments were indeed planned, and that, hopefully, even when material parameters did not allow guided waves, attenuated interface waves might still propagate and be useful for inspection and evaluation.</p> <p>This report can be viewed as an amplified answer to the two questions. We have carried out experiments. They confirm the existence of both true guided waves, and of "leaking" or attenuated waves, on interfaces between materials of engineering interest. The theory presented last year, with some extensions, is a useful guide to excitation and reception methods, propagation speeds, and for leaking modes, attenuation factors. Preliminary pulse-echo observations indicate that these waves can be used for indications of flaws in awkward places, such as on a fastener hole in an inner plate.</p>
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dc.identifier archive/
dc.identifier.articleid 4362
dc.identifier.contextkey 7015247
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1975/allpapers/9
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/|||Sat Jan 15 02:21:59 UTC 2022
dc.subject.disciplines Engineering Mechanics
dc.title Guided and Leaking Interface Waves for NDI/NDE
dc.type event
dc.type.genre event
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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