Arayüzeyinde Poliamid 6,6 (PA 66) Nanofiber Tabakalar Bulunan Cam Elyaf/Epoksi Kompozit Şaftların Serbest Titreşim ve Burulma Burkulması Analizi

Öz

Bu çalışmada, PA 66 nanofiberlerin dört tabakalı cam elyaf/epoksi kompozit şaftın serbest titreşim ve burulma burkulmasına etkisi nümerik olarak incelenmiştir. Nümerik analizler ANSYS 16.2 sonlu elemanlar programı kullanılarak gerçekleştirilmiştir. Üç farklı nanofiber alansal yoğunluğu (8, 10 and 12 g/m²) ele alınarak, nanofiber miktarının titreşim frekanslarına ve burulma burkulması yüküne etkileri ortaya çıkarılmıştır. Nümerik sonuçlara göre, PA 66 nanofiberlerin kompozit şaftın serbest titreşim frekanslarına ve burkulma yüküne sırasıyla %10 ve %22 oranında pozitif etkisi olduğu gözlemlenmiştir. PA 66 nanofiberlerin kompozit şaftın burulma yüküne hasar etkisi önemli bir etkisi görülmemiştir.

Anahtar Kelimeler

• Kompozit şaft,PA 66 nanofiberler,Doğal frekanslar,Burulma burkulması

Free Vibration and Torsional Buckling Analysis of E- Glass/Epoxy Composite Shafts with Polyamide-6,6 (PA 66) Nanofiber Interlayers

Öz

In this study, the effects of polyamide-6,6 (PA 66) nanofibers on the free vibration and torsional buckling of four-layered E-glass/epoxy composite drive shaft were investigated numerically. The numerical analyses were carried out by using ANSYS 16.2 software package. Three different nanofiber areal weight densities (AWDs), 8, 10 and 12 g/m², were considered to reveal the relationship between the amount of nanofibers in the interlaminar region and natural frequencies/critical torsional buckling loads. The numerical results showed that the PA-66 nanofibers had a positive effect on natural frequencies and torsional buckling load of E-glass/epoxy composite shaft. The natural frequencies and buckling load of the composite shaft can be increased by about 10 % and 22% using PA 66 nanofibers as the secondary reinforcing material in the interlaminar region. The failure torque values were not significantly affected with the inclusion of PA 66 nanofibers in the interlaminar region.

Anahtar Kelimeler

• composite shaft,PA 66 nanofibers,natural frequencies,torsional buckling

Kaynakça

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