DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김낙현 | ko |
dc.contributor.author | 손훈 | ko |
dc.contributor.author | 한순우 | ko |
dc.date.accessioned | 2013-03-12T22:30:09Z | - |
dc.date.available | 2013-03-12T22:30:09Z | - |
dc.date.created | 2013-01-10 | - |
dc.date.created | 2013-01-10 | - |
dc.date.created | 2013-01-10 | - |
dc.date.issued | 2012-12 | - |
dc.identifier.citation | 비파괴검사학회지, v.32, no.6, pp.696 - 702 | - |
dc.identifier.issn | 1225-7842 | - |
dc.identifier.uri | http://hdl.handle.net/10203/103731 | - |
dc.description.abstract | In this study, a noncontact laser ultrasonic system is proposed for rail defect detection. An Nd-Yag pulse laser is used for generation of ultrasonic waves, and the corresponding ultrasonic responses are measured by a laser Doppler vibrometer. For the detection of rail surface damages, the shape of the excitation laser beam is transformed into a line. On the other hand, a point source laser beam is used for the inspection of defects inside a rail head. Then, the interactions of propagating ultrasonic waves with defects are examined using actual rail specimens. Amplitude attenuation was mainly observed for a surface crack, and reflections were most noticeable from an internal damage. Finally, opportunities and challenges associated with real-time rail inspection from a high-speed train are discussed. | - |
dc.language | Korean | - |
dc.publisher | 한국비파괴검사학회 | - |
dc.title | Rail Inspection Using Noncontact Laser Ultrasonics | - |
dc.type | Article | - |
dc.type.rims | ART | - |
dc.citation.volume | 32 | - |
dc.citation.issue | 6 | - |
dc.citation.beginningpage | 696 | - |
dc.citation.endingpage | 702 | - |
dc.citation.publicationname | 비파괴검사학회지 | - |
dc.identifier.kciid | ART001727263 | - |
dc.contributor.localauthor | 손훈 | - |
dc.contributor.nonIdAuthor | 김낙현 | - |
dc.contributor.nonIdAuthor | 한순우 | - |
dc.subject.keywordAuthor | Noncontact Laser Ultrasonics | - |
dc.subject.keywordAuthor | Rail Inspection | - |
dc.subject.keywordAuthor | Damage Detection | - |
dc.subject.keywordAuthor | High-Speed Train | - |
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