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Effect of long-term stress aging on aluminum-BFRP hybrid adhesive joint's mechanical performance: Static and dynamic loading scenarios
Ulus, Hasan; Kaybal, Halil Burak; Cacik, Fatih; Eskizeybek, Volkan; Avci, Ahmet (Wiley, 2022)Composite-aluminum hybrid adhesive joints represent an ideal solution for designing lightweight structures for the marine industry. However, seawater aging is a serious concern, limiting the safe service life of the joint. ... -
Effects of alumina nanoparticles on dynamic impact responses of carbon fiber reinforced epoxy matrix nanocomposites
Kaybal, Halil B.; Ulus, Hasan; Demir, Okan; Sahin, Omer S.; Avci, Ahmet (ELSEVIER - DIVISION REED ELSEVIER INDIA PVT LTD, 2018)The influence of alumina (Al2O3) nanoparticles addition upon low-velocity impact behaviors of carbon fiber (CF) reinforced laminated epoxy nanocomposites have been investigated. For this purpose, different amounts of Al2O3 ... -
Evaluation of boron nitride nanoparticles on delamination in drilling carbon fiber epoxy nanocomposite materials
Burak Kaybal, Halil; Unuvar, Ali; Kaynak, Yusuf; Avci, Ahmet (SAGE PUBLICATIONS LTD, 2019)The reinforcements of nanoparticles have an important role in improving the machinability of nanocomposite materials. Except for the known nanoparticles such as carbon nanotube, graphene, nanoclay, etc., the effect of boron ... -
An experimental evaluation on the dynamic response of water aged composite/aluminium adhesive joints: Influence of electrospun nanofibers interleaving
Ulus, Hasan; Kaybal, Halil Burak; Berber, Nihat Erdem; Tatar, Ahmet Caner; Ekrem, Mursel; Ataberk, Necati; Avci, Ahmet (Elsevier Sci Ltd, 2022)The impact response of adhesives is a critical design parameter considering their lifetime. Additionally, environmental effects such as water or moisture may cause to degrade of the polymer-based adhesive and shorten its ... -
An experimental study on low velocity impact performance of bolted composite joints-part 2: Influence of long-term seawater aging
Kaybal, Halil Burak; Ulus, Hasan; Eskizeybek, Volkan; Avci, Ahmet (Elsevier Sci Ltd, 2021)In the first part of this two-part paper (Part 1), the low-velocity impact (LVI) response of bolted fiber-reinforced polymer joints was investigated considering with two scenarios based on the localized impact damage as ... -
Fracture and dynamic mechanical analysis of seawater aged aluminum-BFRP hybrid adhesive joints
Ulus, Hasan; Kaybal, Halil Burak; Cacik, Fatih; Eskizeybek, Volkan; Avci, Ahmet (Pergamon-Elsevier Science Ltd, 2022)Adhesively bonded hybrid FRP-aluminium structures have recently become an efficient solution for marine engineering applications. However, polymer adhesives' bond performance is sensitive to the marine environment due to ... -
A novelty optimization approach for drilling of CFRP nanocomposite laminates
Kaybal, Halil Burak; Unuvar, Ali; Koyunbakan, Murat; Avci, Ahmet (SPRINGER LONDON LTD, 2019)Numerous problems are encountered in drilling of carbon fiber-reinforced polymer composite materials (CFRP) such as delamination, tool wear etc. Delamination has been recognized as a major damage encountered when drilling ... -
Quasi-Static tensile loading performance of Bonded, Bolted, and hybrid Bonded-Bolted Carbon-to-Carbon composite Joints: Effect of recycled polystyrene nanofiber interleaving
Tinastepe, Mehmet Talha; Kaybal, Halil Burak; Ulus, Hasan; Erdal, Mehmet Okan; Cetin, Mehmet Emin; Avci, Ahmet (Elsevier Sci Ltd, 2023)Although hybrid bolted/bonded (HBB) joints possess each joint technique's benefits, the adhesive layer performance significantly affects the load-carrying capacity of hybrid joints. Nanofiber interleaving has become an ... -
Seawater Aged Basalt/Epoxy Composites: Improved Bearing Performance with Halloysite Nanotube Reinforcement
Kaybal, Halil Burak; Ulus, Hasan; Avci, Ahmet (Korean Fiber Soc, 2021)Although they enable for facile disassembly and inspection of critical assemblies, bolted joints are common damage initiation sites in laminated composite structures. Sudden failure can occur at these locations especially ... -
Significantly improved shear, dynamic-mechanical, and mode II fracture performance of seawater aged basalt/epoxy composites: The impact of halloysite nanotube reinforcement
Ulus, Hasan; Kaybal, Halil Burak; Eskizeybek, Volkan; Avci, Ahmet (Elsevier - Division Reed Elsevier India Pvt Ltd, 2021)The primary concern of fiber-reinforced polymers (FRPs) subjected to seawater environment is losing their initial mechanical performance since water can diffuse into the composite and deteriorates the fiber-matrix interface. ... -
Static and dynamic mechanical responses of CaCO3 nanoparticle modified epoxy/carbon fiber nanocomposites
Eskizeybek, Volkan; Ulus, Hasan; Kaybal, Halil B.; Sahin, Omer S.; Avci, Ahmet (ELSEVIER SCI LTD, 2018)Matrix modification of carbon fiber reinforced polymer composites with nanoparticles is an effective way to improve its matrix dominated properties. After nanoparticle modification, understanding mechanical properties is ... -
Tribological behavior of epoxy nanocomposites under corrosive environment: effect of high-performance boron nitride nanoplatelet
Sukur, Emine Feyza; Kaybal, Halil Burak; Ulus, Hasan; Avci, Ahmet (Yildiz Technical Univ, 2023)This paper sheds light on the impact of corrosive service conditions on the mechanical and tribological performances of epoxy nanocomposites containing 0.5 wt.% hexagonal boron nitride (BN) nanoplatelets as fillers. The ...
