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Sound insulation performance of honeycomb core aluminum sandwich panels with flexible epoxy-based foam infill

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dc.contributor.authorBOZTOPRAK, YALÇIN
dc.contributor.authorsBOZTOPRAK Y., Ünal M., Özada Ç., Kuzu E., ÖZER H., Ergin F., YAZICI M.
dc.date.accessioned2023-06-05T11:11:20Z
dc.date.available2023-06-05T11:11:20Z
dc.date.issued2023-09-01
dc.description.abstractThe most distinctive features of sound insulation structures are their flexibility and porosity. Therefore, the flexible epoxy matrix material was made cellular using a suitable foaming agent. In addition, hollow glass microspheres (HGMs) were added to the epoxy matrix. Thus, the sound wave refraction was increased by obtaining cavities in the cell walls. Structures with different densities and voids were created by changing the ratios of the filling material and foaming agents used in the sandwich. An aluminum (Al) honeycomb was used to protect the insulation materials\" structural integrity and ensure the homogeneous distribution of sound waves. The effect of density differences on sound insulation values was investigated. The mechanical properties of sandwich structures were determined using compression and three-point bending tests. The distribution of the filler in the matrix was visualized using SEM. TGA, DSC, thermal conductivity, dielectric, and flammability tests were also performed to determine their thermal, electrical, and flammability properties. During the formation of cells in the flexible epoxy, the HGMs were positioned in the cell wall by internal gas pressure. Low-density structures performed better at low frequencies, while high-density structures at high frequencies.
dc.identifier.citationBOZTOPRAK Y., Ünal M., Özada Ç., Kuzu E., ÖZER H., Ergin F., YAZICI M., "Sound insulation performance of honeycomb core aluminum sandwich panels with flexible epoxy-based foam infill", Composite Structures, cilt.319, 2023
dc.identifier.doi10.1016/j.compstruct.2023.117149
dc.identifier.issn0263-8223
dc.identifier.urihttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85160014571&origin=inward
dc.identifier.urihttps://hdl.handle.net/11424/289952
dc.identifier.volume319
dc.language.isoeng
dc.relation.ispartofComposite Structures
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectİnşaat Mühendisliği
dc.subjectMühendislik ve Teknoloji
dc.subjectCivil Engineering
dc.subjectEngineering and Technology
dc.subjectMühendislik, Bilişim ve Teknoloji (ENG)
dc.subjectMühendislik
dc.subjectMalzeme Bilimi
dc.subjectMALZEME BİLİMİ, SERAMİK
dc.subjectMÜHENDİSLİK, İNŞAAT
dc.subjectEngineering, Computing & Technology (ENG)
dc.subjectENGINEERING
dc.subjectMATERIALS SCIENCE
dc.subjectMATERIALS SCIENCE, CERAMICS
dc.subjectENGINEERING, CIVIL
dc.subjectSeramik ve Kompozitler
dc.subjectFizik Bilimleri
dc.subjectİnşaat ve Yapı Mühendisliği
dc.subjectCeramics and Composites
dc.subjectPhysical Sciences
dc.subjectCivil and Structural Engineering
dc.subjectAcoustic properties
dc.subjectFlexible epoxy
dc.subjectFoam filling
dc.subjectHoneycomb core
dc.subjectSandwich panel
dc.subjectSound insulation
dc.titleSound insulation performance of honeycomb core aluminum sandwich panels with flexible epoxy-based foam infill
dc.typearticle
dspace.entity.typePublication
local.avesis.id25d8c6ac-4928-4695-9525-4f17c4e8a949
local.indexed.atSCOPUS
relation.isAuthorOfPublicationf6c178ce-5ab4-4123-b624-f76bcf95379f
relation.isAuthorOfPublication.latestForDiscoveryf6c178ce-5ab4-4123-b624-f76bcf95379f

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