Suda Yaşlandırmanın Katman İçi Hibrit Karbon/Aramid/Elium Kompozitlerin Mod-I Kırılma Tokluğu Üzerindeki Etkisi

Öz

Bu çalışmada, termoplastik Elium matrisli karbon/aramid katman içi hibrit fiber takviyeli kompozitlerin kırılma davranışı çift ankastre kiriş testi yapılarak incelenmiştir. Kompozitler, 6 aya kadar damıtılmış suda yaşlandırılmıştır ve yaşlandırılmamış numunelerin kırılma performansı, 2, 4 ve 6 ay boyunca yaşlandırılmış numunelerle karşılaştırılmıştır. Yaşlandırılmamış numunelerde maksimum kuvvet ve Mod-I kırılma tokluğu sırasıyla 152,84 N ve 1131,43 J/m2 olarak bulunmuştur. Yaşlandırma sonrasında bu değerler sırasıyla %26,99 ve %32,14 artarak 194,09 N ve 1495,11 J/m2'ye ulaşmıştır. Sonuç olarak, su yaşlandırması karbon/aramid/Elium kompozitlerinin tabakalar arası ayrılma davranışı üzerinde olumlu bir etki yapmıştır. Bu çalışmanın bulguları, Elium matris hibrit kompozitlerin, suda yaşlanma sonrasında bile tabakalar arası kırılma tokluğunun artması nedeniyle, denizcilik ve otomotiv gibi zorlu ortamlarda gerçek dünya uygulamaları için umut verici bir alternatif olduğunu göstermektedir.

Anahtar Kelimeler

• Çift ankastre kiriş
• Elium
• Karbon/aramid
• Katman içi hibrit kompozit
• Kırılma tokluğu
• Su yaşlandırması

Influence of Water Aging on The Mode-I Fracture Toughness of Intraply Hybrid Carbon/Aramid/Elium Composites

Öz

In this study, the fracture behavior of carbon/aramid intraply hybrid fiber-reinforced composites with a thermoplastic Elium matrix was investigated using the double-cantilever beam test. The composites were aged in distilled water for up to 6 months, and the fracture performance of unaged samples was compared with those aged for 2, 4, and 6 months. The maximum force and Mode-I fracture toughness of unaged samples were 152.84 N and 1131.43 J/m2, respectively. After aging, these values increased by 26.99% and 32.14%, reaching 194.09 N and 1495.11 J/m2, respectively. Notably, water aging positively affected the interlaminar delamination behavior of carbon/aramid/Elium composites. The findings of this study demonstrate that Elium matrix hybrid composites are a promising alternative for real-world applications in demanding environments such as marine and automotive, as their interlaminar fracture toughness increases even after water aging.

Anahtar Kelimeler

• Carbon/aramid intraply
• Double-cantilever beam
• Elium
• Fracture toughness
• Hybrid composite
• Water aging

Kaynakça

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