Improving four-point bending performance of marine composite sandwich beams by core modification

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dc.contributor.authorBalıkoğlu F.
dc.contributor.authorArslan N.
dc.contributor.authorDemircioğlu T.K.
dc.contributor.authorİnal O.
dc.contributor.authorİren M.
dc.contributor.authorAtaş A.
dc.date.accessioned2024-07-22T08:07:33Z
dc.date.available2024-07-22T08:07:33Z
dc.date.issued2020
dc.description.abstractThe aim of this study was to improve four-point bending performance of foam core sandwich composite beams by applying various core machining configurations. Sandwich composites have been manufactured using perforated and grooved foam cores by vacuum-assisted resin transfer moulding method with vinyl-ester resin system. The influence of grooves and perforations on the mechanical performance of marine sandwich composite beams was investigated under four-point bending test considering the weight gain. Bending strength and effective bending stiffness increased up to 34% and 61%, respectively, in comparison to a control beam without core modification. Analytical equations were utilised for calculating the mid-span deflection, equivalent bending stiffness and ultimate bending strength of the sandwich beams. Finite element analysis was also performed to analyse the flexural response of the specimens taking into account the combined effect of orthotropic linear elasticity of the face sheet and the non-linear behaviour of the foam core. © The Author(s) 2020.
dc.identifier.DOI-ID10.1177/0021998319874502
dc.identifier.issn00219983
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/13994
dc.language.isoEnglish
dc.publisherSAGE Publications Ltd
dc.subjectComposite beams and girders
dc.subjectFinite element method
dc.subjectFoams
dc.subjectPolyvinyl chlorides
dc.subjectResin transfer molding
dc.subjectResins
dc.subjectSandwich structures
dc.subjectStiffness
dc.subjectAnalytical equations
dc.subjectEffective bending stiffness
dc.subjectFour point bending
dc.subjectFour-point bending test
dc.subjectMechanical performance
dc.subjectPVC foam
dc.subjectSandwich composites
dc.subjectUltimate bending strengths
dc.subjectBending strength
dc.titleImproving four-point bending performance of marine composite sandwich beams by core modification
dc.typeArticle

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