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dc.contributor.authorYaman, Fatih
dc.contributor.authorWeiland, Thomas W.
dc.date.accessioned2017-05-29T12:43:09Z
dc.date.available2017-05-29T12:43:09Z
dc.date.issued2014-12
dc.identifier.citationYaman, F., and Weiland, T. (2014). Inhomogeneity reconstructions in tendon ducts via boundary integral equations. NDT and E International, 68, 66-72. doi:10.1016/j.ndteint.2014.08.007en_US
dc.identifier.issn0963-8695
dc.identifier.urihttps://doi.org/10.1016/j.ndteint.2014.08.007
dc.identifier.urihttp://hdl.handle.net/11147/5633
dc.description.abstractIn this study, as an alternative to the formerly presented investigations, Newton-type numerical algorithms are proposed to find location and shape of an air void inside of a tendon duct and to identify gathered metallic bars in a concrete column. The simulated structures are illuminated by four acoustic sources at a fixed frequency such that the scattered field is measured in a near-field region at 128 points. According to the nature of physical problems, the Dirichlet boundary condition is employed to model air-filled cavities and transmission conditions are assumed for metallic objects. Additionally, conductive boundary conditions are suggested for a more realistic representation of the inhomogeneities for the rusty metallic skin of the duct. Potential approaches are used to derive boundary integral equations. The proper treatment of the ill-conditioned equations is established via Tikhonov regularization. Applicability of the proposed inversion algorithms is tested with realistic parameters for different scenarios using noisy scattered field data and accurate numerical results are presented at 10 kHz for the unknown physical properties of the duct's skin.en_US
dc.description.sponsorshipDFG (YA304/2-1)en_US
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.isversionof10.1016/j.ndteint.2014.08.007en_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectAcoustic tomographyen_US
dc.subjectBoundary integral equationsen_US
dc.subjectBuried object detectionen_US
dc.subjectInverse scattering problemsen_US
dc.subjectNon destructive testingen_US
dc.titleInhomogeneity reconstructions in tendon ducts via boundary integral equationsen_US
dc.typearticleen_US
dc.contributor.authorIDTR206786en_US
dc.contributor.iztechauthorYaman, Fatih
dc.relation.journalNDT and E Internationalen_US
dc.contributor.departmentİYTE, Mühendislik Fakültesi, Elektrik-Elektronik Mühendisliği Bölümüen_US
dc.identifier.volume68en_US
dc.identifier.startpage66en_US
dc.identifier.endpage72en_US
dc.identifier.wosWOS:000345187200008
dc.identifier.scopusSCOPUS:2-s2.0-84908510404
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US


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