Study on the Effects of Selected Factors on the Diagonal Tensile Strength of Oblique Corner Furniture Joints Constructed by Wood Dowel

The oblique corner joints (OCJ) of wood-frame furniture doors crack easily during common usage due to external loads or changes in temperature and humidity. Aiming solve this technology issue, the effects selected factors, i.e., material type (MT), diameter dowel hole (DDH), moisture content (MCD), distance between two dowels (DTD), on diagonal tensile strength joint (OCJ), were investigated experimentally optimized based response surface method. results showed that there typical mechanical behaviors OCJs when subjected loads, according load displacement curves failure modes. critical strength, Fc, ultimate Fu, samples made heat-treated alder smaller than those control alder. DDH had a significant effect Fc but not while DTD both Fu was significant. defined study better indicator for evaluating resistance Fu. constructed by double significantly greater single dowels. optimal parameters constructing obtained: MT wood material, 7.8 mm, with 27 MCD should be higher base material.