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dc.contributor.authorMontalvão, Diogo
dc.contributor.authorKaranatsis, Dimitris
dc.contributor.authorRibeiro, A. M. R.
dc.contributor.authorArina, Joana
dc.contributor.authorBaxter, Richard
dc.date.accessioned2015-08-18T09:43:34Z
dc.date.available2015-08-18T09:43:34Z
dc.date.issued2015-08
dc.identifier.citationMontalvão , D , Karanatsis , D , Ribeiro , A M R , Arina , J & Baxter , R 2015 , ' An experimental study on the evolution of modal damping with damage in carbon fiber laminates ' , Journal of Composite Materials , vol. 49 , no. 19 , pp. 2403-2413 . https://doi.org/10.1177/0021998314547526
dc.identifier.issn0021-9983
dc.identifier.otherPURE: 7245498
dc.identifier.otherPURE UUID: 3128b43c-0e34-4573-83c6-86473033da2b
dc.identifier.otherScopus: 84938305295
dc.identifier.urihttp://hdl.handle.net/2299/16272
dc.description.abstractMany of the techniques developed to assess structural damage are based on Experimental Modal Analysis (EMA). This paper presents a study to extend the current understanding of how increasing damage in a Carbon Fiber Reinforced Plastic (CFRP) affects the modal damping factor of a laminated structure. Damage is introduced and quantified in terms of the dissipated energy. It is shown that there is a tendency for the overall damping to increase whereas there is a tendency for the overall stiffness to decrease. While these results are not novel, the former is quite relevant, since the authors are not aware of many other experimental studies on the evolution of the modal damping factor with damage in CFRPs. At the same time, a modal-based damage location technique that combines both the natural frequencies and the modal damping factors as damage sensitive features is discussed. The hypothesis that different damage morphologies on composite materials have different contributions to the damage features is drawn. The methods are illustrated with both numerical and experimental examples . One of the problems observed is that, although damping is consistently found to increase globally with damage, the determination of the individual changes of the modal damping factors is still very uncertain. This may be due to concurrent damage types being present at the same time, but most certainly due to uncertainties involved in the identification of the modal damping factors.en
dc.language.isoeng
dc.relation.ispartofJournal of Composite Materials
dc.rightsOpen
dc.titleAn experimental study on the evolution of modal damping with damage in carbon fiber laminatesen
dc.contributor.institutionSchool of Engineering and Technology
dc.contributor.institutionCentre for Engineering Research
dc.contributor.institutionMaterials and Structures
dc.contributor.institutionMicrofluidics and Microengineering
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Engineering and Technology
dc.description.versiontypeFinal Accepted Version
dcterms.dateAccepted2015-08
rioxxterms.versionAM
rioxxterms.versionofrecordhttps://doi.org/10.1177/0021998314547526
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeOpen


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