İnterply ve İntraply Karbon Fiber Hibridizasyonlu Aramid Fiber Kompozit Yapıştırma Bağlantılarının Sayısal Modal Analizi

Öz

Yapıştırma bağlantıları birçok endüstriyel alanda makine elemanı olarak kullanılmaktadır. Bu bağlantılar, quasi-statik kuvvetlere maruz kalabileceği gibi dinamik yükler altında da görev yaparlar. Bu nedenle bu bağlantıların dinamik özelliklerinin tespit edilmesi, yapının dayanımı ve çalışma ömrü açısından bir hayli kritiktir. Bu çalışmada, daha önce üretilen ve mekanik olarak karakterize edilen aramid ve karbon elyaf takviyeli kompozitler adherend elemanı olarak yapıştırma bağlantılarında modellenmiş ve interply/intraply hibrtileşmenin yapıştırma bağlantılarının titreşim davranışı üzerindeki etkileri sonlu elemanlar analizi ile incelenmiştir. Bu kapsamda, bağlantıların üç ayrı sınır koşulunda (free-free, clamped-free ve clamped-clamped) birinci doğal frekans ve mode shape leri elde edilmiştir. Buna göre, özellikle clamped sınır şartının intraply adherentli bağlantıların birinci doğal frekansları üzerinde majör etkileri olduğu anlaşılmıştır.

Anahtar Kelimeler

• İntraply
• interply
• aramid
• yapıştırma bağlantıları
• titreşim.

Numerical Modal Analysis of Adhesively Bonded Joints of Aramid Fiber Composites with Interply and Intraply Carbon Fiber Hybridization

Öz

Adhesively bonded joints are widely employed as components in a wide range of industrial applications. These joints can be subjected to quasi-static forces as well as dynamic loads. Therefore, the determination of the dynamic properties of these joints is very critical in terms of the strength and service life of the structure. In this study, previously manufactured and mechanically characterised aramid and carbon fiber reinforced composites were modelled as adherend components in joints and the effects of interply/intraply hybridization on the vibration behaviour of joints were investigated by finite element analysis (FEA). The first natural frequencies and mode shapes of the joints were obtained for three different boundary conditions (free-free, clamped-free and clamped-clamped). It was observed that the clamped boundary condition had a significant effect on the first natural frequencies of joints with intraply adhrends.

Anahtar Kelimeler

• Intraply
• interply
• aramid
• adhesively bonded joints
• vibration.

Kaynakça

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