Bal peteği ve Beton Çekirdek Malzemesine Sahip Cam/Epoksi ve Karbon/Epoksi Kompozit Tüplerinin Bası Davranışı

Bu deneysel çalışmada, [-45°/+45°]4 ve [0°/90°]4 gibi iki farklı dizilim açısına sahip cam/epoksi ve karbon/epoksi kompozit kare tüplerin K25Y30, K50Y60 ve K100Y120 olarak üç farklı boyutta elle yatırma yöntemi kullanılarak üretimi gerçekleştirilmiştir. Üretilen kompozit tüpler için dolgu (çekirdek) malzemeleri olarak alüminyum bal peteği (honeycomb) ve C25 sınıflı hazır beton kullanılmıştır. Deneysel çalışmanın amacı, kompozit kare tüplerin eksenel bası davranışı üzerine numune boyutu, elyaf malzemesi tipi, dizilim açısı, dolgu malzemesi gibi parametre etkilerinin belirlenmesidir. Deney sonrası kompozit kare tüplerde oluşan deformasyon şekilleri yorumlandı. Dolgu malzemelerin yapısal ve dayanım özelliklerinin kompozit tüplerin bası davranışı üzerindeki etkileri araştırıldı. Tüm parametreler için elde edilen sonuçlar, kendi içinde ve birbirleriyle karşılaştırıldı. Dolgu malzemesi, her üç numune boyutunun bası davranışını iyileştirdiği görülmüştür. Numune boyutu büyüdükçe basma kuvveti değeri de artmıştır. En yüksek basma kuvveti beton dolgulu karbon/epoksi esaslı kompozit tüp numunelerde, en düşük değer ise içi boş cam/epoksi numunelerde meydana gelmiştir. Basma sonrası numune hasarları dizilim açısı yönünde oluşmuştur.

Anahtar Kelimeler:

Bal peteği, bası davranışı, cam fiber, epoksi, karbon fiber

Compressive Behavior of Glass/Epoxy and Carbon/Epoxy Tubes Having Core Material with Concrete and Honeycomb

In this experimental study, the production of glass/epoxy and carbon/epoxy composite square tubes with two different orientation angles such as [-45°/+45°]4 and [0°/90°]4 in three different sizes as K25Y30, K50Y60 and K100Y120 was carried out by hand lay-up method. For produced the composite tubes, aluminum honeycomb and C25 class ready mixed concrete are used as filling materials. The purpose of the experimental study is to determine the parameter effects such as specimen size, fiber material type, orientation angle, filling material on the axial compression behavior of composite square tubes. After the experiment, deformation shapes in composite square tubes were interpreted. The effects of structural and strength properties of filler materials on compressive behavior of composite tubes were investigated. The results obtained for all parameters were compared within themselves and with each other. The filling material was seen to improve the compressive behavior of all three specimen sizes. As the specimen size increased, the compression force value also increased. The highest compression force occurred in the composite tube specimens based on carbon/epoxy filled with concrete, and the lowest value was in hollow glass/epoxy specimens. Specimen damages after compression occurred in the direction of the orientation angle.

Keywords:

honeycomb, compression behavior, glass fiber, epoxy, carbon fiber,

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