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Abstract With the progress in science and technology, the use of polymer composites has become increasingly widespread for both scientific research and engineering applications. Especially, glass and carbon fiber/epoxy composites are increasingly demanding for structural applications in aerospace, automotive and marine industries due to their excellent mechanical performance and design advantages over conventional materials [1]. At the same time, the dynamic behavior of composites under impact loading is one of the major concerns in the use of the industry as it is highly susceptible to impact loads which cause significant damage such as cracking of the matrix, delamination and breakage of the fibers [2]. Although carbon fiber reinforced composite laminates have excellent tensile properties, they are vulnerable to out-of-plane applied loads and compressive stresses that occur in low speed impacts [3]. Glass fibers, light and cheaper materials, are generally more ductile, although tensile strengths are slightly lower than carbon fiber [4]. Hybridization, which is applied to composite structures as a "synergistic strengthening" by combining advantageous features of two different reinforcing elements, is widely used where high structural performance and economic efficiency are required [5].

International Symposium on Light Alloys and Composite Materials
UHAKS

Ahmet Caner Tatar Halil Burak Kaybal Hasan Ulus Okan Demir Ahmet Avcı

Abstract Epoxy resins are thermoset materials used widely in structural and composite materials due to their properties such as high strength, low shrinkage, effective electrical insulation, excellent adhesion, chemical and solvent resistance, low toxicity and low cost. Also, epoxy resins are banally used as coatings, casting materials, binders and adhesives application [1]. The use of nanoparticles is a common method used to improve the strength of epoxy resins. Nanoparticles can enhance interfacial area between fillers and polymer [2]. Thus, an increment in performance on the properties of epoxy resin is observed [2, 3]. It is known that polymeric resins can be influenced by water. The interface of filler- polymer or fiber-polymer may weaken when the resin absorbs water [4].

International Symposium on Light Alloys and Composite Materials
UHAKS

Halil Burak Kaybal Hasan Ulus Ahmet Caner Tatar Okan Demir Ahmet Avcı