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  5. Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά)
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Please use this identifier to cite or link to this item: https://olympias.lib.uoi.gr/jspui/handle/123456789/14273
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dc.contributor.authorVavourakis, V.en
dc.contributor.authorProtopappas, V. I. C.en
dc.contributor.authorFotiadis, D.en
dc.contributor.authorPolyzos, D.en
dc.date.accessioned2015-11-24T17:36:42Z-
dc.date.available2015-11-24T17:36:42Z-
dc.identifier.issn0178-7675-
dc.identifier.urihttps://olympias.lib.uoi.gr/jspui/handle/123456789/14273-
dc.rightsDefault Licence-
dc.subjectwaveguidesen
dc.subjectdispersion curvesen
dc.subjectlbieen
dc.subjectbemen
dc.subjectacoustic emissionen
dc.subjecttime-frequency analysisen
dc.subjectboundary-element analysisen
dc.subjectarbitrary cross-sectionen
dc.subjectintegral-equation lbieen
dc.subjectlinear elasticityen
dc.subjectacoustic-wavesen
dc.subjectlamb wavesen
dc.subjectpropagationen
dc.subjectcomputationen
dc.subjectmotionen
dc.subjectbemen
dc.titleNumerical determination of modal dispersion and AE signal characterization in waveguides through LBIE/BEM and time-frequency analysisen
heal.typejournalArticle-
heal.type.enJournal articleen
heal.type.elΆρθρο Περιοδικούel
heal.identifier.primaryDOI 10.1007/s00466-008-0318-7-
heal.identifier.secondary<Go to ISI>://000260836500009-
heal.languageen-
heal.accesscampus-
heal.recordProviderΠανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Μηχανικών Επιστήμης Υλικώνel
heal.publicationDate2009-
heal.abstractIn the present paper a meshless local boundary integral equation (LBIE) method is employed for the numerical determination of dispersion curves in plate like waveguides. Next, the LBIE method is properly combined with the boundary element method (BEM) for the characterization of acoustic emission signals derived from nucleating surface-breaking and body cracks in plate-like waveguides being in contact with a fluid. The time history of the propagating guided waves is computed by means of either the LBIE method or the hybrid LBIE/BEM scheme and the representation of mode dispersion is accomplished through the Reassigned Smoothed Pseudo Wigner-Ville time-frequency analysis. The effectiveness of the method is demonstrated through representative numerical examples.en
heal.publisherSpringeren
heal.journalNameComputational Mechanicsen
heal.journalTypepeer reviewed-
heal.fullTextAvailabilityTRUE-
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