Analysis of factors affecting diagonal tension and compression capacity of corner joints in furniture frames fabricated with dovetail key

Dalvand, Mosayeb; Ebrahimi, Ghanbar; Haftkhani, Akbar Rostampour; Maleki, Sadegh

doi:10.1007/s11676-013-0336-y

Cited by 10 publications

(8 citation statements)

References 7 publications

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“…Results indicated that the highest bending moment capacity under diagonal tensile loading was obtained in the specimens bonded with CA adhesive, and the highest bending moment capacity under diagonal compression loading was obtained in the specimens glued with PVA C adhesive. Dalvand et al (2013) confirmed the effect of joint type and numbers and types of dovetail keys on diagonal tension and compression performance of corner joints in a furniture frame. Smardzewski and Kłos (2011) developed an alternative method of numerical modeling of dowel joint rigidity of board elements, using nodes of substitute linear elasticity modulus for this purpose.…”

Section: Introductionmentioning

confidence: 53%

“…For the joints under tension, walnut turned out to have the dominant role, whereas in the case of the joints under compression, oak played the most important role. This was the result of the character of loads and elastic properties of wood and glue bond (Maleki et al, 2012;Dalvand et al, 2013;Derikvand et al, 2014). The scope of deformations of the torsional bond and the adhesive wood layers depends on their shape elasticity modulus (Kirchhoff 's modulus) (Smardzewski, 1998;Wilczyński and Warmbier, 2003;Prekrat and Smardzewski, 2010).…”

Section: Strength and Stiffness Of Jointsmentioning

confidence: 99%

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Method for substitute modulus determination of furniture frame construction joints

Imirzi

Smardzewski²,

Döngel³

2015

Turk J Agric For

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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 PVA C 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.

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Section: Introductionmentioning

confidence: 53%

Section: Strength and Stiffness Of Jointsmentioning

confidence: 99%

Method for substitute modulus determination of furniture frame construction joints

Imirzi

Smardzewski²,

Döngel³

2015

Turk J Agric For

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“…In the present study, the shear strength of the adhesive applied in the joints was ignored in calculating the load-carrying capacity of joints. Based on this pre-assumption, the following Equations can be used both for joints with or without adhesive (Maleki et al 2012, Dalvand et al 2013. Deriving steps for Equations 6 and 7 are in Equations 1 through 5 (Dalvand et al 2013).…”

Section: Mechanical Testsmentioning

confidence: 99%

Effects of adhesive and loading directions on the load-carrying capacity of V-nails

Taghiyari

Ghofrani

Ghamsari

2017

Maderas, Cienc. tecnol.

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Effects of tensile and compression loading on the overall strength of two miter frame corner joints, namely V-nail and dovetail joints, with and without adhesive were studied for medium-density fiberboard and particleboard. Two sizes of V-nails were chosen, sizes 7 and 10. Tensile and compression load-carrying capacity values were measured on the internal and external corners of the joints. Results showed that both wood-composites had greater load-carrying capacities for compression stress in comparison to tensile stress. Medium-density fiberboard demonstrated higher strength compared to particleboard specimens because of its higher compactness of fibers and more integrity in the composite matrix. Application of adhesive resulted in a significant increase in the strength of all joints and both composites. The increase in medium-density fiberboard was significantly higher in comparison to particleboard because lower permeability in medium-density fiberboard did not let adhesive to be uselessly penetrated into the texture. In particleboard specimens, however, adhesive penetrated into the voids and spaces in the composite, and the adhesive line was weakened between the surfaces of the composite bodies. It was concluded that V-nails are recommended for craftsmen in case adhesive is used. However, dovetail joints provide higher strength if the production process necessitates not to use adhesive in joints.

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“…In this case, although the moment arm for the tension tests is clearly defined (Lt = 63.6 mm), the moment arm for the compression tests is not. The moment arm for compression tests could be calculated from the intersection of the centerlines of the joints as done by Jivkov and Marinova (2006) and Dalvand et al (2013b), for example, or from the inner corner of the joints as done by Kiliç et al (2009) and Altun et al (2010). For each of these moment arms, the calculated C/T ratios could be different.…”

Section: Bending Moment Capacity Of Jointsmentioning

confidence: 99%

“…The bond strength is improved as the PVAc spread rate is increased (Raftery et al 2008); hence, the impact of gluing on the mechanical properties of wood joints would be even more significant when an increased PVAc spread rate is used. Dalvand et al (2013b) reported that, under both diagonal tension and compression loads, mitered corner joints made of fir wood (Abies alba) had greater strength capacity than comparable butt joints. These researchers indicated that mitered dowel joints in solid wood frames had higher load-carrying capacity than joints fastened with either glued or unglued dovetail keys.…”

Section: Introductionmentioning

confidence: 99%

Bending Moment Capacity of L-Shaped Mitered Frame Joints Constructed of MDF and Particleboard

Derikvand¹,

Eckelman²

2015

BioResources

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The impact of fastener type (glued and unglued butterfly dovetail keys, glued and unglued H-shaped dovetail keys, one-pin dowel, two-pin dowels, and plywood spline) and wood composite material type on the bending moment capacity of L-shaped mitered frame joints under diagonal tension and compression loads was investigated. Specimens were constructed of laminated medium-density fiberboard (LamMDF) and laminated particleboard (LamPB). The glued joint specimens were constructed with polyvinyl acetate (PVAc) adhesive. In both tests, joints reinforced with two dowels had the highest bending moment capacity, whereas unglued joints fastened with H-shaped dovetail keys had the lowest capacity. Splined joints were characterized by the second highest bending moment capacity. Two-pin dowel joints had, on average, 47% greater capacity than one-pin dowel joints. The glued dovetail joints were 31% stronger than the unglued joints. There was no statistically significant difference between the bending moment capacities of butterfly and H-shaped dovetail keys. The LamMDF joints exhibited 7.8% greater capacity than joints constructed of LamPB. Overall, the bending moment capacity of joints loaded in compression was 22% higher than that of joints loaded in tension-when the moment arm in the compression specimens was taken at the inside corner of the joint.

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Analysis of factors affecting diagonal tension and compression capacity of corner joints in furniture frames fabricated with dovetail key

Cited by 10 publications

References 7 publications

Method for substitute modulus determination of furniture frame construction joints

Method for substitute modulus determination of furniture frame construction joints

Effects of adhesive and loading directions on the load-carrying capacity of V-nails

Bending Moment Capacity of L-Shaped Mitered Frame Joints Constructed of MDF and Particleboard

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