Experimental evaluation of the vibration behavior of flat and curved sandwich composite beams with face/core debond

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dc.authoridOkutan Baba, Buket/0000-0001-8043-3102
dc.contributor.authorBaba, Buket Okutan
dc.contributor.authorThoppul, Srinivasa
dc.date.accessioned2025-01-27T20:24:34Z
dc.date.available2025-01-27T20:24:34Z
dc.date.issued2009
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractA systematic experimental study to determine the effect of curvatures and debond on the flexural stiffness and strength of composite sandwich beam structures made from fiber-glass/epoxy laminate skins and polyurethane foam core has been carried out. Flat and curved sandwich beams (with 15 degrees, 30 degrees, 45 degrees and 60 degrees open angle) with debond located at the top (upper) and bottom (lower) face/core interface were manufactured. Flexural stiffness and strength were determined from impulse frequency response technique and four-point bending. Vibration test results indicate that the natural frequencies and apparent stiffness are less affected by the presence of curvature and debond, whereas, the loss factors are significantly affected. Four-point test results indicate a reduction in stiffness due the presence of debonds and curvature, but more predominantly, the results show that the peak load reduces sharply with the presence of upper debond. (C) 2009 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipTUBITAK
dc.description.sponsorshipThe authors gratefully acknowledge the financial support of this research by TUBITAK. Mechanical Engineering Department at the WSU University of Detroit has kindly provided access to their facilities. We also would like to thank Prof. Ronald F. Gibson for his valuable time, advice, guidance, and support.
dc.identifier.doi10.1016/j.compstruct.2009.04.037
dc.identifier.endpage119
dc.identifier.issn0263-8223
dc.identifier.issn1879-1085
dc.identifier.issue1
dc.identifier.scopus2-s2.0-67349252038
dc.identifier.scopusqualityQ1
dc.identifier.startpage110
dc.identifier.urihttps://doi.org/10.1016/j.compstruct.2009.04.037
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22279
dc.identifier.volume91
dc.identifier.wosWOS:000267927100013
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofComposite Structures
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectCurved sandwich beams
dc.subjectStiffness
dc.subjectDebonding
dc.subjectVibration
dc.titleExperimental evaluation of the vibration behavior of flat and curved sandwich composite beams with face/core debond
dc.typeArticle

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