Farklı bağlantı elemanları ile üretilmiş köşe birleştirmelerinin diyagonal çekme dayanımı

Öz

Bu çalışmanın amacı kutu tipi mobilyaların köşe birleştirmelerinin diyagonal çekme testi altında dayanımını ve rijitliğini incelemektir. Bu doğrultuda, birleştirme, lif levha (MDF) ve yonga levha (YL) panelleri kullanılarak minifix, kelebek ve trapez bağlantı elemanlarıyla oluşturulmuştur. Ayrıca, bağlantı elemanlarının köşe birleştirme kenar mesafesi de gözlemlenmiştir. Çalışma sonuçlarına göre, MDF, YL’dan %7.5 daha yoğun ve %177 daha dayanıklı olmasından dolayı, bu malzeme ile yapılan birleştirmeler YL panelinden yapılan birleştirmelere göre kullanılan bağlantı elemanı dikkate alındığında %16 ila %92 arasında daha iyi performans göstermiştir. Kelebek bağlantı elemanları, malzeme türü ve köşe birleştirme kenar mesafesinden bağımsız olarak en yüksek dayanım ve rijitliğe sahiptir, trapez bağlantı elemanları onları takip etmektedir. Minifix bağlantı elemanlarıyla yapılan birleştirmeler diğerlerine göre 2-3 kat daha düşük dayanım ve rijitliğe sahiptir. Ayrıca, 75 mm köşe birleştirme kenar mesafesi, 50 mm olanlara göre biraz daha yüksek bir birleştirme dayanımı sağlamıştır ama istatistiksel olarak anlamlı değildir. Sonuç olarak, kutu tipi mobilyaların köşe birleştirmelerinde kelebek bağlantı elemanları belirgin bir şekilde en yüksek dayanımı ve rijitliğini göstermiştir. Mobilya yapımında MDF malzemesinin tercih edilmesi, YL malzemesine göre daha yüksek dayanıklılık sağlamaktadır.

Anahtar Kelimeler

• Diyagonal çekme testi
• Köşe birleştirme
• Demonte bağlantılar
• Kenar mesafesi

The diagonal tensile strength of corner joints constructed with different connectors

Öz

This study aimed to investigate the strength and stiffness of corner joints for case furniture in the diagonal tension test. For this purpose, joint members were constructed with medium-density fiberboard (MDF) and particleboard (PB) with minifix, butterfly, and trapeze connectors. The study also observed the role of the end distance of the connectors, which was found to be a factor in joint strength and stiffness. According to the results, joints made of MDF performed 16 to 92 % better compared to PB, considering connectors on joints, which was evident due to material properties that MDF were denser by 7.5% and more strengthfull by 177% than PB. The butterfly connectors had the highest strength and stiffness regardless of material type and end distance, followed by trapeze connectors. The joints with minifix connectors had strength and stiffness of 2-3 times lower than others. Moreover, the end distance of 75 mm provided slightly higher joint strength and stiffness compared to those of 50 mm but was not statistically significant. Consequently, butterfly connectors demonstrated markedly the highest strength and stiffness for corner joints of case furniture. Furniture made of MDF should be chosen for higher durability rather than PB.

Anahtar Kelimeler

• Diagonal tension test
• Corner joints
• Knockdown connectors
• End distance

Kaynakça

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