Application of Measurement Models to Specification of Ultrasonic Inspections

dc.contributor.author Gray, Timothy
dc.date 2018-02-14T09:16:27.000
dc.date.accessioned 2020-06-30T06:47:41Z
dc.date.available 2020-06-30T06:47:41Z
dc.date.copyright Wed Jan 01 00:00:00 UTC 1997
dc.date.issued 1997
dc.description.abstract <p>for economic reasons, there is an increasing tendency to perform automated ultrasonic scans of near net-shaped forgings, which can have rather complex shapes, as opposed to inspection of simpler, sonic shapes, which typically have only planar inspection surfaces. A difficulty in the former approach is that the surface curvature of forgings causes the ultrasonic beam to focus or defocus within the component and, therefore, the ultrasonic sensitivity to internal defects changes as compared to inspection through a flat surface. It is certainly possible to account for this sensitivity variation by using curved calibration or reference blocks. However, a more convenient and cost effective approach is to use analytical models to predict the UT instrument gain corrections required for the curved surface inspections as compared to sensitivity levels measured from standard flat surface calibration blocks. This paper describes such models and their application to specification of ultrasonic inspection parameters for scanned ultrasonic inspection of curved forgings using both planar and focused transducers. Examples of these applications will be presented via case histories from the electric generation and aircraft engine industries.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1997/allcontent/268/
dc.identifier.articleid 4144
dc.identifier.contextkey 5820921
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1997/allcontent/268
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/61151
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1997/allcontent/268/1997_GrayTA_ApplicationMeasurement.pdf|||Fri Jan 14 23:04:04 UTC 2022
dc.source.uri 10.1007/978-1-4615-5947-4_269
dc.subject.disciplines Acoustics, Dynamics, and Controls
dc.subject.keywords CNDE
dc.title Application of Measurement Models to Specification of Ultrasonic Inspections
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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