Half-Space Radiation by EMAT's

dc.contributor.author Pardee, William
dc.contributor.author Thompson, R.
dc.date 2018-02-13T17:28:16.000
dc.date.accessioned 2020-06-30T01:28:26Z
dc.date.available 2020-06-30T01:28:26Z
dc.date.copyright Tue Jan 01 00:00:00 UTC 1980
dc.date.embargo 2013-11-15
dc.date.issued 1980-07-01
dc.description.abstract <p>A Green's function calculation of the far field radiation patterns of EMAT's is presented. The approach is based upon (a) closed form expressions for the eddy current and static magnetic field distributions, established by the EMAT, which react to produce the driving Lorentz forces and (b) a Green's function derived from the steepest descent approximation to the far field response of an arbitary surface point force on a half space. Numerical results are presented, illustrating the radiation patterns of the three common EMAT designs. Included are vertically polarized shear waves as radiated by both meander coil and periodic magnet EMAT's and horizontally polarized shear waves as radiated by the latter.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/cnde_yellowjackets_1979/26/
dc.identifier.articleid 1021
dc.identifier.contextkey 4825707
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath cnde_yellowjackets_1979/26
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/16064
dc.language.iso en
dc.relation.ispartofseries Interdisciplinary Program for Quantitative Flaw Definition Annual Reports
dc.source.bitstream archive/lib.dr.iastate.edu/cnde_yellowjackets_1979/26/1979_YellowJacket_021_Pardee_HalfSpace.pdf|||Fri Jan 14 23:00:14 UTC 2022
dc.subject.disciplines Materials Science and Engineering
dc.subject.keywords Nondestructive Evaluation
dc.title Half-Space Radiation by EMAT's
dc.type article
dc.type.genre 05_ultrasonic_transducers
dspace.entity.type Publication
relation.isSeriesOfPublication 43920e40-d127-4f4c-9087-dc709815fe7f
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