Development of a numerical test bed for ultrasonic inspection of highly reinforced concrete

dc.contributor.author Baquera, Mica
dc.contributor.author Bond, Leonard
dc.contributor.author Bond, Leonard
dc.contributor.department Aerospace Engineering
dc.contributor.department Mechanical Engineering
dc.contributor.department Center for Nondestructive Evaluation (CNDE)
dc.date 2020-07-02T21:10:38.000
dc.date.accessioned 2020-07-06T21:25:24Z
dc.date.available 2020-07-06T21:25:24Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 2018
dc.date.embargo 2018-01-01
dc.date.issued 2017-01-01
dc.description.abstract <p>Reliable non-destructive evaluation of heavily reinforced large concrete structures becomes more important every day as the US civil infrastructure continues to age. Use of low frequency ultrasound has shown some success, however, as the level of reinforcement and thickness increase, inspection issues remain. There is a need for tools to design, optimize and evaluate inspections to estimate detection capability as a function a wall thickness and level of reinforcement. A numerical testbed is being developed to meet this need. Using a 2D approximation simulation of inspection of concrete up to 1m thick and using frequencies of 50kHz can be assessed efficiently. Image processing techniques were used to mesh images of concrete microstructure and to generate a realistic local geometry for concrete samples. For initial code validation, the scattering response from a 3mm side drilled hole (SDH) in immersion was assessed. The code had good agreement with both analytical and experimental results. The code is being extended to consider various rebar geometries and aggregate combinations and initial data are reported. Material properties used were based on experimental measurements. The test bed is now being used to consider a sparse phased array, to optimize sensor placements, and evaluate inspection performance.</p>
dc.description.comments <p>This proceeding may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This proceeding appeared in Baquera, Mica T., and Leonard J. Bond. "Development of a numerical test bed for ultrasonic inspection of highly reinforced concrete." In <em>Proceedings of Meetings on Acoustics</em> 32, no. 1 (2017): 022002, and may be found at DOI: <a href="https://doi.org/10.1121/2.0000736" target="_blank">10.1121/2.0000736</a>. Posted with permission.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/aere_conf/52/
dc.identifier.articleid 1052
dc.identifier.contextkey 18345409
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath aere_conf/52
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/91497
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/aere_conf/52/2017_BondLeonard_DevelopmentNumerical.pdf|||Sat Jan 15 00:47:35 UTC 2022
dc.source.uri 10.1121/2.0000736
dc.subject.disciplines Acoustics, Dynamics, and Controls
dc.subject.disciplines Structural Materials
dc.subject.disciplines Structures and Materials
dc.subject.keywords Ultrasound
dc.subject.keywords Image processing
dc.subject.keywords Ultrasonics
dc.subject.keywords Antennas
dc.title Development of a numerical test bed for ultrasonic inspection of highly reinforced concrete
dc.type article
dc.type.genre conference
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 6d38ab0f-8cc2-4ad3-90b1-67a60c5a6f59
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