NDE of Thick Graphite/Epoxy Composites: Some Approaches and Problems

dc.contributor.author Murri, William
dc.contributor.author Sermon, Bradley
dc.date 2018-02-14T05:40:29.000
dc.date.accessioned 2020-06-30T06:34:35Z
dc.date.available 2020-06-30T06:34:35Z
dc.date.copyright Sun Jan 01 00:00:00 UTC 1989
dc.date.issued 1989
dc.description.abstract <p>Composite materials are being used in many applications because they can be tailored to meet specific design requirements. Fiber and resin type, fiber orientation, layering, and thickness are deliberately used during prepreg layup or filament winding to give a composite structure specific, desirable properties. These quantities are useful design parameters, but produce attenuation of ultrasound and anisotropy in material properties, which cause difficulty in performing NDE. For example, thick, filament wound composites generally have more porosity than prepreg composites, which further increases attenuation of the ultrasonic signal. Geometric and/or viscoelastic effects cause dispersion of the wavespeed and attenuation coefficient i.e. they are frequency dependent. The general anisotropy of the composite causes the wave velocity to be a function of direction. However, some way to inspect structures made from these materials must be found if their usefulness is to be exploited.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1989/allcontent/190/
dc.identifier.articleid 2416
dc.identifier.contextkey 5799530
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1989/allcontent/190
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/59287
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1989/allcontent/190/1989_Murri_NDEThick.pdf|||Fri Jan 14 21:51:12 UTC 2022
dc.source.uri 10.1007/978-1-4613-0817-1_190
dc.title NDE of Thick Graphite/Epoxy Composites: Some Approaches and Problems
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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