DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cammarata, Marcello | ko |
dc.contributor.author | Piervincenzo Rizzo | ko |
dc.contributor.author | Debaditya Dutta | ko |
dc.contributor.author | Sohn, Hoon | ko |
dc.date.accessioned | 2013-03-11T05:18:24Z | - |
dc.date.available | 2013-03-11T05:18:24Z | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.created | 2012-02-06 | - |
dc.date.issued | 2010-05 | - |
dc.identifier.citation | SMART STRUCTURES AND SYSTEMS, v.6, no.4, pp.349 - 362 | - |
dc.identifier.issn | 1738-1584 | - |
dc.identifier.uri | http://hdl.handle.net/10203/98348 | - |
dc.description.abstract | Ultrasonic Guided Waves (UGWs) are a useful tool in structural health monitoring (SHM) applications that can benefit from built-in transduction, moderately large inspection ranges and high sensitivity to small flaws. This paper describes a SHM method based on UGWs, discrete wavelet transform (DWT), and principal component analysis (PCA) able to detect and quantify the onset and propagation of fatigue cracks in structural waveguides. The method combines the advantages of guided wave signals processed through the DWT with the outcomes of selecting defect-sensitive features to perform a multivariate diagnosis of damage. This diagnosis is based on the PCA. The framework presented in this paper is applied to the detection of fatigue cracks in a steel beam. The probing hardware consists of a PXI platform that controls the generation and measurement of the ultrasonic signals by means of piezoelectric transducers made of Lead Zirconate Titanate. Although the approach is demonstrated in a beam test, it is argued that the proposed method is general and applicable to any structure that can sustain the propagation of UGWs. | - |
dc.language | English | - |
dc.publisher | TECHNO-PRESS | - |
dc.title | Application of principal component analysis and wavelet transform to fatigue crack detection in waveguides | - |
dc.type | Article | - |
dc.identifier.wosid | 000277691400001 | - |
dc.identifier.scopusid | 2-s2.0-77952579433 | - |
dc.type.rims | ART | - |
dc.citation.volume | 6 | - |
dc.citation.issue | 4 | - |
dc.citation.beginningpage | 349 | - |
dc.citation.endingpage | 362 | - |
dc.citation.publicationname | SMART STRUCTURES AND SYSTEMS | - |
dc.identifier.kciid | ART001440573 | - |
dc.contributor.localauthor | Sohn, Hoon | - |
dc.contributor.nonIdAuthor | Cammarata, Marcello | - |
dc.contributor.nonIdAuthor | Piervincenzo Rizzo | - |
dc.contributor.nonIdAuthor | Debaditya Dutta | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | ultrasonic guided waves | - |
dc.subject.keywordAuthor | principal component analysis | - |
dc.subject.keywordAuthor | fatigue crack detection | - |
dc.subject.keywordAuthor | structural health monitoring | - |
dc.subject.keywordPlus | VARYING ENVIRONMENTAL-CONDITIONS | - |
dc.subject.keywordPlus | STRUCTURAL DAMAGE DIAGNOSIS | - |
dc.subject.keywordPlus | LAMB WAVES | - |
dc.subject.keywordPlus | METALLIC STRUCTURES | - |
dc.subject.keywordPlus | LASER VIBROMETRY | - |
dc.subject.keywordPlus | CLASSIFICATION | - |
dc.subject.keywordPlus | STRANDS | - |
dc.subject.keywordPlus | PCA | - |
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