Elastic and Acoustoelastic Properties of Railroad Rail

dc.contributor.author Thompson, R.
dc.contributor.author Wormley, S.
dc.contributor.author Johnson, J.
dc.contributor.author Utrata, D.
dc.date 2018-02-14T06:03:55.000
dc.date.accessioned 2020-06-30T06:43:09Z
dc.date.available 2020-06-30T06:43:09Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 1995
dc.date.issued 1995
dc.description.abstract <p>The measurement of thermally induced longitudinal forces in railroad rail is an important element in the control of train damage due to rail buckling or other modes of track failure. Acoustoelastic techniques, whereby stresses are inferred from small shifts in the ultrasonic velocity, are attractive because they can sample the stresses on the interior of the rail and because relatively simple instrumentation can be utilized [1]. The effectiveness of acoustoelastic techniques, however, is limited by the degree to which other sources of velocity shifts are present, generally associated with rail-to-rail variations in microstructure. Figure 1 illustrates the problem. Stress is inferred from the shift in velocity from its stress free value, based on a proportionality constant known as the acoustoelastic constant. Errors in the values of either the stress free velocity or the acoustoelastic constant can lead to errors in the predicted stress.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1995/allcontent/242/
dc.identifier.articleid 2603
dc.identifier.contextkey 5800191
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1995/allcontent/242
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/60507
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1995/allcontent/242/1995_Thompson_ElasticAcoustoelastic.pdf|||Fri Jan 14 22:52:58 UTC 2022
dc.source.uri 10.1007/978-1-4615-1987-4_242
dc.subject.keywords CNDE
dc.title Elastic and Acoustoelastic Properties of Railroad Rail
dc.type event
dc.type.genre article
dspace.entity.type Publication
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