Bending moment capacity of simple and haunched mortise and tenon furniture joints under tension and compression loads
A study was conducted to examine the effects of tenon geometry on the bending moment capacity of simple and haunched mortise and tenon joints under the action of both compressive and tensile loads. The effects of tenon width (25, 37.5, and 50 mm), tenon thickness (7.5, 10, and 15 mm), and tenon length (20, 25, and 30 mm) were examined. All of the joints were constructed of Turkish beech (Fagus orientalis Lipsky) and were assembled with a 40% solid-content polyvinyl acetate. Optimum results were obtained with joints constructed with 10-mm-thick tenons that were 37.5 mm wide by 30 mm long. Tenon length was found to have the greatest effect on joint capacity, whereas tenon width was found to have a much smaller effect. Joints constructed with 37.5-mm-wide haunched tenons had essentially the same moment capacity as joints constructed with 37.5-mm simple tenons. Optimum tenon width was 10 mm (1/3 of rail thickness); joints constructed with 10-mm-thick tenons had greater capacity than joints constructed with either 7.5- or 15-mm thick tenons.
Bending moment capacity of simple and haunched mortise and tenon furniture joints under tension and compression loads
A study was conducted to examine the effects of tenon geometry on the bending moment capacity of simple and haunched mortise and tenon joints under the action of both compressive and tensile loads. The effects of tenon width (25, 37.5, and 50 mm), tenon thickness (7.5, 10, and 15 mm), and tenon length (20, 25, and 30 mm) were examined. All of the joints were constructed of Turkish beech (Fagus orientalis Lipsky) and were assembled with a 40% solid-content polyvinyl acetate. Optimum results were obtained with joints constructed with 10-mm-thick tenons that were 37.5 mm wide by 30 mm long. Tenon length was found to have the greatest effect on joint capacity, whereas tenon width was found to have a much smaller effect. Joints constructed with 37.5-mm-wide haunched tenons had essentially the same moment capacity as joints constructed with 37.5-mm simple tenons. Optimum tenon width was 10 mm (1/3 of rail thickness); joints constructed with 10-mm-thick tenons had greater capacity than joints constructed with either 7.5- or 15-mm thick tenons.
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- Barboutis I, Meliddides T (2011). Influence of the time between machining and assembly of mortise and tenon joints on tension strength of T-type joints. Ann WULS-SGGW For Wood Technology 73: 23–29.
- Derikvand M, Smardzewski J, Ebrahimi G, Dalvand M, Maleki S (2013). Withdrawal force capacity of mortise and loose tenon T-type furniture joints. Turk J Agric For 37: 377–384.
- Dupont W (1963). Rationalization of Glued Joints in the Woodworking Industry. Modern Holzverarbeitung No. 30.
- Eckelman CA (2003). Textbook of Product Engineering and Strength Design of Furniture. West Lafayette, IN, USA: Purdue University Press.
- Eckelman CA, Erdil Y, Haviarova E (2006). Effect of shoulders on bending moment capacity of round mortise and tenon joints. Forest Prod J 56: 82–86.
- Eckelman C, Haviarova E, Erdil Y, Tankut A, Akcay H, Denzili N (2004). Bending moment capacity of round mortise and tenon furniture joints. Forest Prod J 54: 192–197.
- Eckelman CA, Lin FC (1997). Bending strength of corner joints constructed with injection-molded splines. Forest Prod J 47: 89–
- Erdil Y (2005). Bending moment capacity of rectangular mortise and tenon furniture joints. Forest Prod J 55: 209–213.
- Ishii M, Miyajima H (1981). Comparison of performance of wooden chair joints. Res Bulletin of the College of Experimental Forest. Hokkaido Uni 38: 121–138.
- Mihailescu T (2001). An investigation of the performance of mortise and tenon joints using the finite element methods. J Institute Wood Sci 15: 5.
- Tankut AN, Tankut N (2005). The effects of joint forms (shape) and dimensions on the strengths of mortise and tenon joints. Turk J Agric For 29: 493–498.
- Tankut N (2007). The effect of adhesive type and bond line thickness on the strength of mortise and tenon joints. Int J Adhes Adhes 27: 493–498.