Nondestructive evaluation of surface crack depth in concrete

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dc.contributor.authorAlver N.
dc.contributor.authorOhtsu M.
dc.date.accessioned2019-10-26T21:35:07Z
dc.date.available2019-10-26T21:35:07Z
dc.date.issued2013
dc.departmentEge Üniversitesien_US
dc.descriptionBruel and Kjaer;m+p international;Vibrant Technology;Spectral Dynamics;SQi Spectra Quest, Inc.en_US
dc.description31st International Modal Analysis Conference on Structural Dynamics, IMAC 2013 -- 11 February 2013 through 14 February 2013 -- Garden Grove, CA -- 98886en_US
dc.description.abstractSubsurface damages in concrete may cause considerable durability loss in the structure since they are not visible from the surface and let water and other chemicals to penetrate into the structure and cause reinforcement corrosion. Ultrasonic methods have been widely applied for defect detection in concrete, however, there are not many applications of the method found in literature for subsurface damage identification. Specifically, when the damage is deeper considering the distance from the top surface. Therefore, in this study concrete blocks including subsurface cracks with different depths as well as a sound concrete block were tested by applying ultrasound. Wave parameters such as velocity and attenuation for each case were evaluated. Rayleigh wave and longitudinal wave velocities do not change for different subsurface crack depths. Even though, wave energy attenuates more in case of a shallower crack, it is difficult to correlate the attenuation rate with crack depth. Still, attenuation rate is an indicative parameter for subsurface damage identification. Numerical results obtained by Boundary Element Method (BEM) analysis are in good agreement with experimental ones. Stack imaging procedure applied to ultrasonic echo data is used as a complementary technique for subsurface crack depth identification. Reflection at the crack depth can be clearly identified. © The Society for Experimental Mechanics, Inc. 2013.en_US
dc.identifier.endpage275en_US
dc.identifier.isbn9781461465546
dc.identifier.issn2191-5644
dc.identifier.issn2191-5644en_US
dc.identifier.issue4en_US
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage269en_US
dc.identifier.urihttps://hdl.handle.net/11454/17925
dc.identifier.volume39en_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.relation.ispartofConference Proceedings of the Society for Experimental Mechanics Seriesen_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBEMen_US
dc.subjectNDEen_US
dc.subjectSAFTen_US
dc.subjectSurface cracken_US
dc.subjectUltrasounden_US
dc.titleNondestructive evaluation of surface crack depth in concreteen_US
dc.typeConference Objecten_US

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