Değişken cam elyaf dizilimli izolatörlerde mekanik özelliklerin incelenmesi

Öz

Bu çalışmada, el yatırma yöntemiyle üretilen kompozit numunelerin mekanik performansı üzerindeki lif yöneliminin etkisi incelenmiştir. E-Glass kumaşlar kullanılarak cam elyaf takviyeli epoksi kompozitler üretilmiştir. Lif yönelimi açısından dört farklı konfigürasyonda numuneler hazırlanmış ve lif hizalanmasının mekanik özelliklere etkisini değerlendirmek amacıyla çekme testine tabi tutulmuştur. Sonuçlar, numuneler arasında çekme dayanımı açısından önemli farklılıklar olduğunu göstermiş, lif yönelimindeki küçük değişimlerin bile mekanik davranış üzerinde dikkate değer etkiler yaratabileceğini ortaya koymuştur. Kopma modlarına ilişkin gözlemler, lif yöneliminin yük dağılımı ve yapısal bütünlük üzerindeki kritik rolünü daha da vurgulamıştır. Bu çalışma, el yatırma yöntemiyle üretilen kompozitlerde liflerin doğru konumlandırılmasının önemini vurgulamakta ve elle üretilen kompozit yapıların güvenilirliğini artırmaya yönelik önemli bulgular sunmaktadır.

Anahtar Kelimeler

• fiber oryantasyonu
• çekme deneyi
• elektriksel izolatörler
• cam elyaf
• kompozit malzemeler

Investigation of mechanical properties in variable oriented glass fiber reinforced insulators

Abstract

This study investigates the influence of fiber orientation on the mechanical performance of composite insulators produced by the hand lay-up method. E-glass fiber-reinforced epoxy composites were fabricated using three types of glass fiber fabrics: unidirectional (L300), ±90° biaxial (LT600), and ±45° biaxial (X600). Additionally, silica sand-filled epoxy insulators were also evaluated—both factory-produced and commercially sourced—to benchmark performance differences with glass fiber-reinforced counterparts. The primary objective is to assess how varying fiber alignment and material configurations affect mechanical properties, particularly under tensile loading. Specimens were prepared in four distinct orientation configurations and subjected to tensile testing. The results demonstrated significant variations in tensile strength, highlighting that even minor differences in fiber orientation can substantially alter mechanical behavior. Failure mode analysis further emphasized the critical role of fiber orientation in load distribution and structural integrity. Overall, this study provides insights into enhancing the mechanical reliability of composite insulators by optimizing fiber placement and evaluating alternative filler systems such as silica sand.

Keywords

• fiber orientation
• tensile test
• electrical insulators
• glass fiber
• composite materials

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