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Polimer matris esaslı kompozit üretiminde kullanılan farklı karbon fiber yapıların mekanik dayanımına etkisinin incelenmesi

Investigation of the effect of different carbon fiber structures used in polymer matrix based composite production on mechanical strength
Authors: Okta, Ceyda;

Polimer matris esaslı kompozit üretiminde kullanılan farklı karbon fiber yapıların mekanik dayanımına etkisinin incelenmesi

Abstract

Today, the demand and need for composites are increasing. Due to its low density, its lightness in constructions and its high performance properties make composites sought-after materials. In producing of textile reinforced composites, the materials (woven, knitted fabric) are transformed into polymeric composites and gain functionality and technical performance. In this thesis, the mechanical properties of the woven and knitted structures of carbon fiber composite materials formed in different densities and thicknesses were investigated. In weaving type, 3-ply 200 g/m2 Plain, 200 g/m2 Twill and 245 g/m2 Twill carbon fiber fabrics and single-ply 1x1, 2x1, 3x1 interlock carbon fiber composite materials are produced by hand lay-up and vacuum pressing methods. In order to examine the mechanical properties of the produced plates, a tensile test, the three-point flexural test was carried out according to the ASTM D3039 and ASTM D790 standards. As a result of experimental studies, the tensile strength of composite plates and knitted plates with woven carbon fiber structures were investigated. It has been determined that the tensile strength of fiber composites obtained by weaving is higher. The fracture surfaces of the plates obtained in experimental studies were examined by scanning electron microscopy (FESEM), and interpretations were made about the strength values obtained.

Günümüzde kompozitlere olan talep ve ihtiyaç artmaktadır. Düşük yoğunluğa bağlı olarak konstrüksiyonlarda sağladığı hafiflik, yüksek performans özellikleri ile kompozitler aranan malzemeler haline gelmektedir. Tekstil takviyeli kompozitler üretiminde sahip olduğu materyaller (dokuma, örme kumaş) polimerik kompozitlere dönüştürülerek fonksiyonellik ve teknik performans kazanmaktadır. Bu tez çalışmasında, farklı yoğunluk ve kalınlıkta oluşturulmuş karbon fiber kompozit malzemelerin dokuma ve örgü yapılarının mekanik özellikleri incelenmiştir. Dokuma tipinde 3 katlı 200 g/m2 bezayağı, 200 g/m2 dimi ve 245 g/m2 dimi karbon fiber kumaş ile tek kat 1x1, 2x1, 3x1 interlok örgü yapısına sahip karbon fiber kompozit malzemeler el yatırması ve vakum pres yöntemleri ile üretilmiştir. Üretilen plakaların mekanik özelliklerinin incelenmesi için ASTM D3039 ve ASTM D790 standartlarına göre çekme ve üç nokta eğme testleri yapılmıştır. Deneysel çalışmalar sonucunda dokuma karbon fiber yapısına sahip kompozit plakaların ve örgü plakaların çekme ve eğme dayanımları incelenmiştir. Dokuma ile elde edilen fiber kompozitlerin çekme ve eğme dayanımının daha yüksek değerlerde olduğu tespit edilmiştir. Plakaların deneysel çalışmalarda elde edilen kırılma yüzeyleri taramalı elektron mikroskobu (FESEM) ile incelenmiş ve elde edilen dayanım değerleri hakkında yorumlama yapılmıştır.

Country
Turkey
Related Organizations
Keywords

karbon fiber takviyeli kumaşlar, Kompozit malzemeler, carbon fiber reinforced fabrics, Composite materials, carbon fiber fabric, mechanical strength, mekanik özellik, karbon fiber kumaş

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
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Green