Bending moment resistance of dowel corner joints in case-type furniture under diagonal compression load

Abstract

We investigated bending moment resistance under diagonal compression load of corner doweled joints with plywood members. Joint members were made of 11-ply hardwood plywood of 19 mm thickness. Dowels were fabricated of Beech and Hornbeam species. Their diameters (6, 8 and 10 mm) and depths of penetration (9, 13 and 17 mm) in joint members were chosen variables in our experiment. By increasing the connector’s diameter from 6 to 8 mm, the bending moment resistance under diagonal compressive load was increased, while it decreased when the diameter was increased from 8 to 10 mm. The bending moment resistance under diagonal compressive load was increased by increasing the dowel’s depth of penetration. Joints made with dowels of Beech had higher resistance than dowels of Hornbeam. Highest resisting moment (45.18 N·m) was recorded for joints assembled with 8 mm Beech dowels penetrating 17 mm into joint members Lowest resisting moment (13.35 N·m) was recorded for joints assembled with 6 mm Hornbeam dowels and penetrating 9 mm into joint members.

Keywords

bending moment resistance / plywood / dowel / diameter / corner joint / case-type furniture

References

[1] Altun S, Burdurlu E, Kilic M. Effect of adhesive types on the bending moment capacity of miter frame corner joints. BioResources, 2010, 5(3): 1473-1483.

[2] American Society of TestingMaterials ASTM. Test methods for specific gravity of wood and wood-base materials, 1999

[3] American Society of TestingMaterials ASTM. Test methods for small clear specimens of timber, 1999

[4] Dalvand M, Ebrahimi GH, Rostampour Haftkhani A, Maleki S. Analysis of factors affecting diagonal tension and compression capacity of corner joints in furniture frame fabricated with dovetail key. Journal of Forestry Research, 2013, 24(1): 155-168.

[5] Eckelman CA, Erdil YZ, Zhang JL. Withdrawal and Bending Strength of Dowel Joints constructed of Plywood and Oriented Strand Board. Forest Products Journal, 2002, 52(9): 66-74.

[6] Eckelman CA, Haviarova E. Load capacity and deflection characteristics of large wooden dowels loaded in double shear. Forest Products Journal, 2007, 57(5): 60-64.

[7] Eckelman CA. Textbook of Product Engineering and Strength Design of Furniture. 2003, West Lafayette, Indiana: Purdue University Press

[8] Erdil YZ, Eckelman CA. Withdrawal Strength of Dowels in Plywood and Oriented strand Board. Turkish Journal of Agriculture and Forestry, 2001, 25(5): 319-327.

[9] Erdil YZ, Zhang J, Eckelman CA. Withdrawal and bending strength of dowel-nuts in plywood and oriented strand board. Forest Products Journal, 2003, 53(6): 54-57.

[10] Maleki S, Derikvand M, Dalvand M, Ebrahimi Gh. Load carrying capacity of mitered furniture corner joints with dovetail keys under diagonal tension load. Turkish Journal of Agriculture and Forestry, 2012, 36(5): 636-643.

[11] Maleki S, Rostampour Haftkhani A, Dalvand M, Faezipuor M, Tajvidi M. Bending moment resistance of corner joints constructed with spline under diagonal tension and compression. Journal of Forestry Research, 2012, 23(3): 481-490.

[12] Tankut AN. Optimum dowel spacing for corner joints in 32-mm cabinet construction. Forest Products Journal, 2005, 55(12): 100-104.

[13] Tas HH. Strength properties of L-profiled furniture joints constructed with laminated wooden panels. Scientific Research and Essays, 2010, 5(6): 545-550.

[14] Zhang JL, Eckelman CA. Rational design of multi-dowel corner joints in case construction. Forest products Journal, 1993, 43(11): 52-58.

[15] Zhang JL, Eckelman CA. The bending moment resistance of single-dowel corner joints in case construction. Forest products Journal, 1993, 43(6): 19-24.

[16] Zhang JL, Erdil YZ, Eckelman CA. Lateral holding strength of dowel joints constructed of plywood and oriented strand board. Forest Products Journal, 2002, 52(7/8): 83-89.

[17] Zhang JL, Erdil YZ, Eckelman CA. Torsional Strength of Dowel Joints Constructed of Plywood and Oriented Strand Board. Forest Products Journal, 2002, 52(10): 89-94.