EFFECTS OF THE PANEL AND FASTENER TYPE ON BENDING MOMENT CAPACITY OF L-TYPE JOINTS FOR FURNITURE CASES

Mehmet Yuksel, Ali Kasal, Yusuf Ziya
unpublished
The objective of this study was to investigate the effects of panel types and fastener types on moment capacity of L-type corner joints. For this purpose, fasteners and material types on the failure loads of L-type corner joints have been analyzed experimentally and statistically. Screw, minifix, and confirmat screw have been used as fastener types, 18mm plywood (PW), 15mm PW, 16mm partical board (PB), 18mm PB, 16mm medium density fiberboard (MDF) and 18mm MDF have been used as panel types in
more » ... is study. Physical and mechanical properties of PB, PW and MDF were performed in accordance with the procedures described in ASTM D 4442 (2003) and ASTM D 1037 (2001) standards respectively. According to the results, it is concluded that PW and confirmat screw combination increase the moment capacity of the construction. Thus, both PW and confirmat screw can be recommended to use in furniture construction which need more moment capacity. INTRODUCTION Last decades, fastener materials which use without adhesives are used commonly in furniture construction because they allow to use furniture to be shipped in the knock down condition and assembled on site which significantly reduces shipping costs. This is an important consideration both in the case of domestic and export furniture. Ready to assemble (RTA) fasteners are widely utilized for corner joints of furniture constructions. To design in MDF and PB for real size case specimens with RTA fasteners, information on moment capacity and rigidity information of the fasteners are required. In spite of their widespread use, limited information is available regarding on moment capacity of fasteners and panel types which used with RTA corner joints. Published information is mostly related to direct withdrawal resistances of screw-type joints and moment resistances of L-type corner joints (Eckelman 1974, 1975, 1978, Zaini and Eckelman 1993). Yerlikaya and Aktas (2012) were studied the failure loads of L-type corner joints in case-type furniture that constructed with five corner joint types which are glass-fiber composite layer (C), dowel (D), dowel + composite layer (DC), dowel + minifix (DM), and dowel + minifix + composite layer (DMC). They analyzed failure load of the joints under tension and compression moments. According to
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