Experimental investigation of oligo cyclic compression behavior of pure epoxy and graphene-epoxy nanocomposites

Basit Öğe Kaydı
dc.authorid0000-0002-2515-7624en_US
dc.contributor.authorColak, Ozgen U.
dc.contributor.authorUzunsoy, Deniz
dc.contributor.authorBahlouli, Nadia
dc.contributor.authorFrancart, Charles
dc.date.accessioned2021-03-20T20:09:16Z
dc.date.available2021-03-20T20:09:16Z
dc.date.issued2021
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Metalurji ve Malzeme Mühendisliği Bölümüen_US
dc.description.abstractThe loading-unloading compression behavior and the oligo cyclic behavior of pure epoxy and graphene-epoxy nanocomposites are investigated since the systematic evaluation of the mechanical behavior under cyclic loading is of great importance in the development of damage characterization and fatigue models for polymer composites. High purity graphene nanoflakes (GNF) are synthesized by electric arc discharge method, and the manufacturing of graphene epoxy nanocomposites is done using solution blending. The structural characterizations of produced GNF are performed using several techniques such as transmission electron microscopy (TEM), Raman spectroscopy and Brunauer-Emmett-Teller (BET). Oligo quasi-static strain-controlled cyclic tests are performed at the elastic (or viscoelastic) region, around yield and after softening at the viscoplastic region. Comparing the behavior under compression, loading-unloading and oligo (repeated) cycled reveals that prehistory does not have much effect on the subsequent behavior. The change in the elasticity modulus during repeated cyclic compression is determined. It is observed that elasticity modulus decreases initially, and then, it progressively increases with the increase in applied maximum strain. Compared to epoxy, the yield stresses of graphene-epoxy decrease in both strain rates and a small increase in the elasticity modulus of graphene-epoxy is observed at low strain rate (1.E-4 /s).en_US
dc.identifier.doi10.1007/s00289-020-03453-4en_US
dc.identifier.endpage6952
dc.identifier.issn0170-0839
dc.identifier.issn1436-2449
dc.identifier.issue12
dc.identifier.scopusqualityQ2en_US
dc.identifier.startpage6935
dc.identifier.urihttp://doi.org/10.1007/s00289-020-03453-4
dc.identifier.urihttps://hdl.handle.net/20.500.12885/341
dc.identifier.volume78
dc.identifier.wosWOS:000588923800006en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorUzunsoy, Deniz
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofPolymer Bulletinen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectOligo cyclicen_US
dc.subjectGraphene-epoxyen_US
dc.subjectViscoplasticityen_US
dc.subjectGrapheneen_US
dc.titleExperimental investigation of oligo cyclic compression behavior of pure epoxy and graphene-epoxy nanocompositesen_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Metalurji ve Malzeme Mühendisliği Bölümü Yayın Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu