tailieunhanh - Method for substitute modulus determination of furniture frame construction joints
The goal of the performed experiments was to determine the strength, stiffness, and modulus of the elasticity of dowel, mortise and loose-tenon, and mortise and tenon L-type furniture joints under diagonal tension and compression loads. | Turkish Journal of Agriculture and Forestry Turk J Agric For (2015) 39: 775-785 © TÜBİTAK doi: Research Article Method for substitute modulus determination of furniture frame construction joints 1, 2 1 Hasan Özgür İMİRZİ *, Jerzy SMARDZEWSKI , Nihat DÖNGEL Department of Wood Product Industry Engineering, Faculty of Technology, Gazi University, Ankara, Turkey 2 Department of Furniture Design, Faculty of Wood Technology, Poznan University of Life Sciences, Poznan, Poland 1 Received: Accepted/Published Online: Printed: Abstract: The goal of the performed experiments was to determine the strength, stiffness, and modulus of the elasticity of dowel, mortise and loose-tenon, and mortise and tenon L-type furniture joints under diagonal tension and compression loads. The specimens were constructed from Turkish beech (Fagus orientalis L.), white oak (Quercus alba), and white walnut (Juglans cinerea L.) and were assembled with a water-resistant PVAC adhesive. According to the obtained results, the highest stiffness/strength values were estimated in mortise and tenon joints constructed of white oak, whereas dowel joints constructed from Turkish beech showed the lowest stiffness/ strength and deformability. The elasticity modulus of the experimental joints expressed their stiffness better than the stiffness coefficient. The accuracy of the developed elasticity modulus model of the examined joints was verified positively both by experimental studies and numerical calculations. Key words: Elasticity modulus, furniture joints, numerical analysis, stiffness, substitute modulus, wood species 1. Introduction Furniture design and construction is an applied art. As such, it must take into consideration not only aesthetic and functional preferences and fashions but also rigidity and strength requirements (Smardzewski and Gawronski, 1998). Mortise and tenon joints are still widely
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