DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김규진 | ko |
dc.contributor.author | 박선종 | ko |
dc.contributor.author | 곽효경 | ko |
dc.date.accessioned | 2016-11-09T06:34:56Z | - |
dc.date.available | 2016-11-09T06:34:56Z | - |
dc.date.created | 2016-09-06 | - |
dc.date.created | 2016-09-06 | - |
dc.date.created | 2016-09-06 | - |
dc.date.issued | 2016-04 | - |
dc.identifier.citation | 비파괴검사학회지, v.36, no.2, pp.121 - 129 | - |
dc.identifier.issn | 1225-7842 | - |
dc.identifier.uri | http://hdl.handle.net/10203/213913 | - |
dc.description.abstract | As the lifespan of concrete structures increases, their load carrying capacity decreases owing to cyclic loads and long-term effects such as creep and shrinkage. For these reasons, there is a necessity for stress state monitoring of concrete members. Particularly, it is necessary to evaluate the concrete structures for behavioral changes by using a technique that can overcome the measuring limitations of usual ultrasonic nondestructive evaluation methods. This paper proposes the use of a nonlinear ultrasonic method, namely, nonlinear resonant ultrasonic spectroscopy (NRUS) for the measurement of nonlinearity parameters for stress monitoring. An experiment compared the use of NRUS method and a linear ultrasonic method, namely, ultrasonic pulse velocity (UPV) to study the effects of continuously increasing loads and cyclic loads on the nonlinearity parameter. Both NRUS and UPV methods found a similar direct relationship between load level and that parameter. The NRUS method showed a higher sensitivity to micro-structural changes of concrete than UPV method. Thus, the experiment confirms the possibility of using the nonlinear ultrasonic method for stress state monitoring of concrete members. | - |
dc.language | Korean | - |
dc.publisher | 한국비파괴검사학회 | - |
dc.title | Application of Nonlinear Ultrasonic Method for Monitoring of Stress State in Concrete | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.citation.volume | 36 | - |
dc.citation.issue | 2 | - |
dc.citation.beginningpage | 121 | - |
dc.citation.endingpage | 129 | - |
dc.citation.publicationname | 비파괴검사학회지 | - |
dc.identifier.doi | 10.7779/JKSNT.2016.36.2.121 | - |
dc.identifier.kciid | ART002102080 | - |
dc.contributor.localauthor | 곽효경 | - |
dc.contributor.nonIdAuthor | 김규진 | - |
dc.contributor.nonIdAuthor | 박선종 | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Stress State Monitoring | - |
dc.subject.keywordAuthor | Nonlinear Resonant Ultrasonic Spectroscopy (NRUS) | - |
dc.subject.keywordAuthor | Nonlinearity Parameter | - |
dc.subject.keywordAuthor | Cyclic Load | - |
dc.subject.keywordAuthor | Ultrasonic Pulse Velocity (UPV) | - |
dc.subject.keywordPlus | SPECTROSCOPY | - |
dc.subject.keywordPlus | VELOCITY | - |
dc.subject.keywordPlus | DAMAGE | - |
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