Test Hızının S2-Cam Elyaf Takviyeli Polimerlerin Düzlem Dışı Mekanik Özelliklerine Etkisi

Year 2025, Volume: 25 Issue: 2, 407 - 413, 11.04.2025

Cagatay Yilmaz , Sara Eltahir

https://doi.org/10.35414/akufemubid.1530498

Abstract

Test hızları, fiber takviyeli polimerik malzemelerin mekanik tepkisini değiştiren önemli parametrelerdir. Bu çalışma kapsamında, düzlem dışı yükleme koşulu altında farklı test hızları ile S2-cam elyaf takviyeli polimerik malzemelerin eğilme davranışlarını inceledik. Düzlem dışı yükleme koşulu üç noktalı eğilme fikstürüyle sağlandı. 20 mm/dk, 40 mm/dk ve 60 mm/dk olmak üzere üç farklı test hızı bu çalışmada kullanıldı. Maksimum yükte sehim miktarı, eğilme modülü ve eğilme mukavemeti test hızına bağlı olarak analiz edildi. Test hızı 20 mm/dk’dan 40 mm/dk'ya çıktıkça hem eğilme mukavemetinin hem de eğilme modülünün artış eğilimi gösterdiği bulundu. Bununla birlikte, yer değiştirme hızı 40 mm/dk'dan 60 mm/dk'ya yükseldiğinde eğilme mukavemetinde ve modülde bir düşüş gözlemlendi.

Keywords

S2-cam fiber, test hızları, kompozit, üç nokta eğilme

Project Number

221M085

Effect of Crosshead Displacements Rates on the Out of Plane Mechanical Properties of S2-Glass Fiber Reinforced Polymers

Abstract

Crosshead displacement rates are significant parameters that alter the mechanical response of fiber reinforced polymeric materials. In this study, we examined the bending behavior of S2-glass fiber reinforced polymeric materials with different crosshead displacement rates under out-of-plane loading condition. Out of plane loading condition is achieved with a three-point bending fixture. Three different crosshead displacement rates, 20 mm/min, 40 mm/min, and 60 mm/min, are chosen. Flexural strength, flexural modulus, and flexural strain at maximum load is analyzed. It is found that as the crosshead displacement rate increases from 20 mm/min to 40 mm/min, both flexural strength and flexural modulus shows an upward trend. However, when the crosshead displacement rate increases from 40 mm/min to 60 mm/min a drop in the flexural strength and modulus is observed.

Keywords

S2-glass fiber, crosshead displacement rates, composites, three-point bending

Project Number

221M085

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