DC Field | Value | Language |
---|---|---|
dc.contributor.author | Liu, Peipei | ko |
dc.contributor.author | Sohn, Hoon | ko |
dc.date.accessioned | 2017-11-08T05:44:53Z | - |
dc.date.available | 2017-11-08T05:44:53Z | - |
dc.date.created | 2017-11-06 | - |
dc.date.created | 2017-11-06 | - |
dc.date.issued | 2017-12 | - |
dc.identifier.citation | JOURNAL OF SOUND AND VIBRATION, v.411, pp.20 - 33 | - |
dc.identifier.issn | 0022-460X | - |
dc.identifier.uri | http://hdl.handle.net/10203/226896 | - |
dc.description.abstract | Nonlinear ultrasonic techniques have been proven to be more sensitive to the presence of an early-stage damage than linear techniques. Among various nonlinear techniques, laser nonlinear wave modulation spectroscopy (LNWMS) utilizes a pulse laser to exert a broadband input and a damage on the target structure exhibits nonlinear wave modulation among various input frequency components. A sideband peak count (SPC) technique in the spectral frequency domain was proposed to estimate the damage-induced nonlinearity. In this study, the SPC operation is conducted in the spectral correlation domain so that noise has less influence on damage detection performance and a higher sensitivity to damage can be achieved. In addition, through spatial comparison of SPC over an inspection area, damage can be detected without relying on the baseline data obtained from a pristine condition. The performance of the proposed technique is validated using a numerical simulation performed on an aluminum plate with a simulated crack, and experiments performed on an aluminum plate with a fatigue crack and a carbon fiber reinforced polymer plate with delamination. (C) 2017 Elsevier Ltd. All rights reserved. | - |
dc.language | English | - |
dc.publisher | ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD | - |
dc.subject | FATIGUE-CRACK DETECTION | - |
dc.subject | ELASTIC-WAVE SPECTROSCOPY | - |
dc.subject | NONLINEAR ULTRASONIC MODULATION | - |
dc.subject | DISCERN MATERIAL DAMAGE | - |
dc.subject | NEWS TECHNIQUES | - |
dc.subject | VISUALIZATION | - |
dc.subject | DELAMINATION | - |
dc.title | Damage detection using sideband peak count in spectral correlation domain | - |
dc.type | Article | - |
dc.identifier.wosid | 000413119800002 | - |
dc.identifier.scopusid | 2-s2.0-85031760098 | - |
dc.type.rims | ART | - |
dc.citation.volume | 411 | - |
dc.citation.beginningpage | 20 | - |
dc.citation.endingpage | 33 | - |
dc.citation.publicationname | JOURNAL OF SOUND AND VIBRATION | - |
dc.identifier.doi | 10.1016/j.jsv.2017.08.049 | - |
dc.contributor.localauthor | Sohn, Hoon | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Damage detection | - |
dc.subject.keywordAuthor | Nonlinear wave modulation | - |
dc.subject.keywordAuthor | Sideband peak count | - |
dc.subject.keywordAuthor | Spectral correlation | - |
dc.subject.keywordAuthor | Laser ultrasonics | - |
dc.subject.keywordPlus | FATIGUE-CRACK DETECTION | - |
dc.subject.keywordPlus | ELASTIC-WAVE SPECTROSCOPY | - |
dc.subject.keywordPlus | NONLINEAR ULTRASONIC MODULATION | - |
dc.subject.keywordPlus | DISCERN MATERIAL DAMAGE | - |
dc.subject.keywordPlus | NEWS TECHNIQUES | - |
dc.subject.keywordPlus | VISUALIZATION | - |
dc.subject.keywordPlus | DELAMINATION | - |
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