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Sim, Sung-Han
Smart Infrastructure Systems Lab
Research Interests
  • Smart Sensor and Sensor Network, Structural Health Monitoring, Digital Image Processing

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Surface-Wave Based Model for Estimation of Discontinuity Depth in Concrete

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dc.contributor.authorAhn, Eunjongko
dc.contributor.authorKim, Hyunjunko
dc.contributor.authorSim, Sung-Hanko
dc.contributor.authorShin, Sung Wooko
dc.contributor.authorPopovics, John S.ko
dc.contributor.authorShin, Myoungsuko
dc.date.available2018-09-14T00:51:08Z-
dc.date.created2018-09-03ko
dc.date.issued201808ko
dc.identifier.citationSENSORS, v.18, no.9, pp.2793 -ko
dc.identifier.issn1424-8220ko
dc.identifier.urihttp://scholarworks.unist.ac.kr/handle/201301/24754-
dc.identifier.urihttp://www.mdpi.com/1424-8220/18/9/2793ko
dc.description.abstractIn this paper, we propose an accurate and practical model for the estimation of surface-breaking discontinuity (i.e., crack) depth in concrete through quantitative characterization of surface-wave transmission across the discontinuity. The effects of three different mixture types (mortar, normal strength concrete, and high strength concrete) and four different simulated crack depths on surface-wave transmission were examined through experiments carried out on lab-scale concrete specimens. The crack depth estimation model is based on a surface-wave spectral energy approach that is capable of taking into account a wide range of wave frequencies. The accuracy of the proposed crack depth estimation model is validated by root mean square error analysis of data from repeated spectral energy transmission ratio measurements for each specimen.ko
dc.languageENGko
dc.publisherMDPI AGko
dc.subjectsurface-wave transmissionko
dc.subjectself-calibrating measurementko
dc.subjectspectral energy transmission ratioko
dc.subjectcrack depth estimation modelko
dc.titleSurface-Wave Based Model for Estimation of Discontinuity Depth in Concreteko
dc.typeARTICLEko
dc.identifier.pid1137null
dc.identifier.pid1223null
dc.identifier.rimsid30861ko
dc.identifier.scopusid2-s2.0-85052565871ko
dc.type.rimsAko
dc.identifier.doihttp://dx.doi.org/10.3390/s18092793ko
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