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

Yıl 2018, Cilt: 20 Sayı: 60, 1036 - 1044, 15.09.2018

Bertan Beylergil

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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