Damage diagnosis of a laminated composite beam and plate via model based structural health monitoring techniques

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dc.contributor.authorPekedis, Mahmut
dc.contributor.authorYildiz, Hasan
dc.date.accessioned2019-10-27T23:12:10Z
dc.date.available2019-10-27T23:12:10Z
dc.date.issued2016
dc.departmentEge Üniversitesien_US
dc.description.abstractIn this study, model based damage identification algorithms were applied for a delaminated composite beam and plate. Initially, natural frequencies of healthy and delaminated beam were measured via experimental modal analysis. Next, the natural frequencies obtained by experimental method were verified with the finite element analysis. Once the validation has been fulfilled, the next step was to apply the finite element analysis to extract the mode shapes. Then, the curvatures mode shapes were obtained from the mode shapes, and these parameters were used in the gapped smooth method (GSM) and strain energy method (SEM) to detect the location and size of the delamination. The damage diagnosis technique for composite plate was evaluated for two cases. In the first case, it was assumed that the initial health information of a structure is known. However, the information of an undamaged structure may not be available during the diagnosis process for some circumstances. Therefore, the diagnosis was conducted by evaluating the curvatures of damaged structure using surface fit techniques in order to predict the initial status for the second case. Both of the two damage detection algorithms were evaluated for these two cases. The results show that, the delamination of laminated composite beam and plate could be predicted non-destructively by employing the data obtained from experimental or numerical technique in model based SHM approach for laboratory conditions.en_US
dc.identifier.doi10.17341/gazimmfd.278438
dc.identifier.endpage831en_US
dc.identifier.issn1300-1884
dc.identifier.issn1304-4915
dc.identifier.issn1300-1884en_US
dc.identifier.issn1304-4915en_US
dc.identifier.issue4en_US
dc.identifier.startpage813en_US
dc.identifier.urihttps://doi.org/10.17341/gazimmfd.278438
dc.identifier.urihttps://hdl.handle.net/11454/53183
dc.identifier.volume31en_US
dc.identifier.wosWOS:000392927000002en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isotren_US
dc.publisherGazi Univ, Fac Engineering Architectureen_US
dc.relation.ispartofJournal of the Faculty of Engineering and Architecture of Gazi Universityen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectStructural health monitoringen_US
dc.subjectdamage diagnosis algorithmsen_US
dc.subjectcomposite structuresen_US
dc.subjectdelaminationen_US
dc.titleDamage diagnosis of a laminated composite beam and plate via model based structural health monitoring techniquesen_US
dc.typeArticleen_US

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