Uzun Dönem Yaşlandırmanın S2 Cam/Epoksi Kompozitlerin Mekanik Özelliklerine Etkisi

Year 2025, Volume: 25 Issue: 1, 215 - 222

Ersan Kırar , Gökhan Demircan , Murat Kısa , Mustafa Özen

Abstract

Kompozit malzemeler özgül mukavemetlerinin yüksek olması nedeniyle sıklıkla tercih edilmektedir. S2 cam elyaf takviyeli kompozit malzemelerde özgül mukavemeti oldukça yüksek olan takviye malzemelerinden biridir. Ancak kompozit malzemelerin kullanıldıkları ortamlarda zaman içinde yaşlanma kaynaklı olarak dayanımlarında düşüşler gerçekleşmektedir. Yaşlanma kaynaklı kompozitlerin dayanım düşüşlerinin belirlenmesi emniyet açısından önem arz etmektedir. Literatürde de kompozit malzemeleri çeşitli yaşlanma işlemleri sonrası inceleyen çalışmalara rastlanmaktadır. Ancak S2 cam/epoksi kompozitlerin 36 ay yapay deniz suyunda yaşlandırılması sonrası inceleme yapan çalışmaya rastlanmamıştır. Bu çalışmada S2 cam/epoksi kompozit malzemenin 36 ay yapay deniz suyu ortamında yaşlandırılması sonrası hem deneysel (düzlem içi çekme, basma ve Iosipesqu kayma testleri) hem de sonlu elemanlar analiziyle inceleme yapılmıştır. 36 ay yaşlandırma işlemi sonucunda; maksimum gerilme değerleri açısından kayma testinde %17,77, basma testinde %19,19 ve çekme testinde ise %24,39 düşüş olduğu tespit edilmiştir. Ayrıca testlerin sonlu elemanlar analizi sonuçlarıyla deneysel sonuçlar arasında maksimum hata oranı %6,97 olarak tesit edilmiş ve oldukça iyi bir uyum elde edilmiştir.

Keywords

Kompozit, Cam Elyaf, Yaşlandırma, Mekanik Özellikler, Sonlu Elemanlar Analizi

Supporting Institution

Harran Üniversitesi Bilimsel Araştırma Projeleri Koordinatörlüğü

Project Number

19353

Thanks

Harran Üniversitesi Bilimsel Araştırma Projeleri Koordinatörlüğü tarafından 19353 proje nosuyla desteklenmiştir. HÜBAP biriminin 19353 numaralı projesi kapsamındaki desteği için teşekkür ederiz.

Effect of Long-Term Aging on Mechanical Properties of S2 Glass/Epoxy Composites

Abstract

Composite materials are frequently preferred due to their high specific strength. S2 Glass fiber is one of the reinforcement materials with very high specific strength in glass fiber reinforced composite materials. However, in the environments where composite materials are used, their strength decreases over time due to aging. Determining the strength decreases of composites due to aging is important for safety. In the literature, there are studies examining composite materials after various aging processes. However, no study has been found that examined S2 glass/epoxy composites after aging in artificial seawater for 36 months. In this study, S2 glass/epoxy composite material was examined both experimentally (in-plane tensile, compression and Iosipesque shear tests) and finite element analysis after aging in an artificial seawater environment for 36 months. As a result of the 36-month aging process; In terms of maximum stress values, it was determined that there was a decrease of 17.77% in the shear test, 19.19% in the compression test and 24.39% in the tensile test. In addition, the maximum error rate between the finite element analysis results of the tests and the experimental results was determined as 6.97% and a very good agreement was obtained.

Keywords

Composite, Glass Fiber, Aging, Mechanical Properties, Finite Element Analysis

Project Number

19353

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