This study was carried out to determine the shear and bending strength of different end-to-end grain joints, which were glued with PVAc (polyvinyl acetate). | Tr. J. of Agriculture and Forestry 23 (1999) 621-625 © TÜBİTAK Shear and Bending Strength of some End to End Grained Joints Prepared from Scotch Pine Hanifi TOKGÖZ Gazi Univ. Faculty of Technical Education, Building Department, Ankara-TURKEY Ayhan ÖZÇİFÇİ, Musa ATAR Gazi Univ. Faculty of Technical Education, Furniture Department, Ankara-TURKEY Burhanettin UYSAL Zonguldak Karaelmas Üniv. Safranbolu College, Karabuk-TURKEY Received: Abstract: This study was carried out to determine the shear and bending strength of different end-to-end grain joints, which were glued with PVAc (polyvinyl acetate). For this reason, specimens, prepared from scotch pine (Pinus sylvestris l), were made with three types of end to end grain joints namely: half-lap, mortise and tenon and double mortise-and-tenon. End-to-end grain of half-lap joints gave the highest strength in shear ( N/mm2 ) and bending ( N/mm2 ) experiments. Sarıçam Odunundan Hazırlanan Farklı Boy Birleştirmelerin Kesme ve Eğilme Dirençleri Özet: Bu çalışma, yapı elamanı olarak kullanılan sarıçam odununun polivinil asetat (PVAc) tutkalı ile yapılan farklı boy birleştirmelerin kesme ve eğilme dirençlerini belirlemek amacıyla yapılmıştır. Bu maksatla, sarıçam (Pinus sylvestris I.) odunundan kertme, tam (tek) ve çift zıvanalı olarak hazırlanan ve PVAc tutkalı ile birleştirilen örneklere kesme ve eğilme direnci deneyleri uygulanmıştır. 2 2 Sonuç olarak, kertme zıvanalı boy birleştirme; kesme ( N/mm ) ve eğilme deneylerinde ( N/mm ) en yüksek direnci vermiştir. Introduction In the past, woods which were used as building and furniture material could be joined by using different joining types according to their function. Except joints which are made using nails and naillike fastening devices, shouldered, mortise, dowel, and blind dovetail joints have also been used in handicrafts, and these joints are used for assembling of pieces of windows, doors, wooden buildings and solid furniture today
