Hibrit Dokunan Karbon/E-Cam/Polipropilen Termoplastik Prepreg Kompozitlerin Mekanik Özellikleri

Yıl 2018, Cilt: 25 Sayı: 111, 196 - 207, 01.10.2018

Gaye Kaya

Öz

 Kompozit malzemelerde yüksek spesifik özelliklere düşük
fiyatlarda ulaşma isteğinin çeşitli endüstriyel uygulama alanları için giderek
artması, hibrit termoplastik kompozitlerin geliştirilmesine katkı sağlamıştır. Bu
çalışmada, hibrit dokunan Karbon/Polipropilen (PP), E-cam/PP ve Karbon/E-cam/PP
prepregler kullanılarak, katman-içi, katmanlar-arası ve
katman-içi/katmanlar-arası hibrit biçimde tasarlanan termoplastik kompozitler
geliştirilmiş ve bu kompozitlerin eksenel yüke maruz kalması durumundaki
davranışları hibrit-olmayan kompozitlerle karşılaştırılmıştır. Hibritlemede
kullanılan takviye liflerinin konum ve lif miktarı bakımından dengeli/uniform dağılıma
sahip olduğu katman-içi/katmanlar-arası hibrit kompozit yapı en yüksek dayanım/modül
değerini göstermiştir. Katman-içi/katmanlar-arası hibrit kompozit yapı, gerek
daha dar bir alanda sınırlanan delaminasyon davranışı, gerekse yüksek çekme
dayanım/modül değerleri bakımından hasar toleranslı malzeme olarak
değerlendirilmiştir. 

Anahtar Kelimeler

Hibrit kompozit, termoplastik kompozit, çekme dayanımı, kırılma davranışı

Mechanical Properties of Hybrid Woven Carbon/E-Glass/Polypropylene Thermoplastic Prepreg Composites

Öz

An increased request in composite materials at low
prices with high specific properties has contributed to the development of
hybrid thermoplastic composites. In this study, intra-ply, inter-ply and intra-ply/inter-ply
hybrid thermoplastic composites are developed by using hybrid woven
Carbon/Polypropylene (PP), E-glass/PP and Carbon/E-glass/PP prepregs and their
behaviors under axial loading are compared with non-hybrid composites. The
intra-ply/inter-ply hybrid composites, which have equable and uniform fiber
placement/fiber fractions, provide the highest tensile strength and modulus
values. The intra-ply/inter-ply hybrid composite in which the delamination is
limited to a narrow region provides high tensile strength/modulus values and therefore
this composite is considered as damage tolerant material. 

Anahtar Kelimeler

Hybrid composite, thermoplastic composite, tensile strength, failure behavior

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