Nonlinear resonance vibration method to estimate the damage level on heat-exposed concrete

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dc.contributor.authorPark, Sun-Jongko
dc.contributor.authorYim, Hong Jaeko
dc.contributor.authorKwak, Hyo-Gyoungko
dc.date.accessioned2015-04-06T05:43:13Z-
dc.date.available2015-04-06T05:43:13Z-
dc.date.created2014-11-24-
dc.date.created2014-11-24-
dc.date.issued2014-10-
dc.identifier.citationFIRE SAFETY JOURNAL, v.69, pp.36 - 42-
dc.identifier.issn0379-7112-
dc.identifier.urihttp://hdl.handle.net/10203/194686-
dc.description.abstractAfter exposing concrete structures to fire, a promising in-situ evaluation method is required to evaluate the subsequent durability of the concrete. Fire-damage to concrete includes the formation of contact-type defects based on physicochemical changes, which are a dominant factor in fire-damage. The phenomenon of nonlinear resonance vibration is the shift of resonance frequency depending on input amplitude and it can sensitively reflect the occurrence of contact-type defects. This study attempts to estimate damage level to which concrete under heat-exposed, based on the proposed method to measure a hysteretic nonlinearity parameter. The experimental study was performed on 100 concrete samples with different mix proportions and fire scenarios. As a result, a relationship is proposed by which to estimate damage level on heat-exposed concrete, based on the correlation with the peak temperature and the hysteretic nonlinearity parameter.-
dc.languageEnglish-
dc.publisherELSEVIER SCI LTD-
dc.subjectELASTIC-WAVE SPECTROSCOPY-
dc.subjectDISCERN MATERIAL DAMAGE-
dc.subjectNONDESTRUCTIVE EVALUATION-
dc.subjectACOUSTIC SPECTROSCOPY-
dc.subjectDYNAMIC MODULUS-
dc.subjectNEWS TECHNIQUES-
dc.subjectMICRO-DAMAGE-
dc.subjectFIRE DAMAGE-
dc.subjectDISKS-
dc.titleNonlinear resonance vibration method to estimate the damage level on heat-exposed concrete-
dc.typeArticle-
dc.identifier.wosid000343691100004-
dc.identifier.scopusid2-s2.0-84906259809-
dc.type.rimsART-
dc.citation.volume69-
dc.citation.beginningpage36-
dc.citation.endingpage42-
dc.citation.publicationnameFIRE SAFETY JOURNAL-
dc.identifier.doi10.1016/j.firesaf.2014.07.003-
dc.contributor.localauthorKwak, Hyo-Gyoung-
dc.contributor.nonIdAuthorYim, Hong Jae-
dc.type.journalArticleArticle-
dc.subject.keywordAuthorFire-damage-
dc.subject.keywordAuthorEvaluation method-
dc.subject.keywordAuthorConcrete-
dc.subject.keywordAuthorNonlinear resonance-
dc.subject.keywordAuthorPeak temperature-
dc.subject.keywordAuthorHysteretic nonlinearity parameter-
dc.subject.keywordPlusELASTIC-WAVE SPECTROSCOPY-
dc.subject.keywordPlusDISCERN MATERIAL DAMAGE-
dc.subject.keywordPlusNONDESTRUCTIVE EVALUATION-
dc.subject.keywordPlusACOUSTIC SPECTROSCOPY-
dc.subject.keywordPlusDYNAMIC MODULUS-
dc.subject.keywordPlusNEWS TECHNIQUES-
dc.subject.keywordPlusMICRO-DAMAGE-
dc.subject.keywordPlusFIRE DAMAGE-
dc.subject.keywordPlusDISKS-
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CE-Journal Papers(저널논문)
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