The Effect of Selected Factors on Domino Joint Stiffness

Finger joints enable the full utilization of wood. The finger joint technique is used to eliminate wood defects that would otherwise weaken the wood strength. This research project evaluated how the wood species, adhesive type, and number of teeth affect the elastic stiffness of finger joints. The adhesives used were polyurethane and polyvinyl acetate, and the wood species were beech (Fagus sylvatica L.) and spruce (Picea abies L.). This study also determined the elastic stiffness of finger joints with 2 teeth and 5 teeth. For this purpose, the samples were loaded via a bending moment reaction, with tensile or compression forces in the angular plane. The highest elastic stiffness was obtained from the beech wood samples with 5 teeth bonded with polyvinyl acetate adhesive under tensile stress. Therefore, it was concluded that the elastic stiffness increased when the number of teeth increased. However, further studies on the elastic stiffness of finger joints are necessary in relation to the finger teeth length and surface area of the glue between the finger joint connections.

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“…5B). Záborský et al (2018) found that there was also a small difference in the bonding factor for dowel joints.…”

Section: Resultsmentioning

confidence: 94%

Influence of geometry on the stiffness of corner finger joints

Kamboj

Záborský

Girl

2019

BioRes

Self Cite

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“…After the adhesive is applied, the Domino adheres to the sides of the hole more tightly because of the swelling properties of wood, which makes the glued joint even stronger. The grooves on the Domino tenon support even glue distribution [3].…”

Section: Introductionmentioning

confidence: 89%

“…Structural rigidity and strength is known as the most important part of the design [1].Wood fasteners are used to join individual pieces in a perfectly and functionally satisfactory piece such as a furniture component or overall structure. In joint elements, internal forces are mostly distributed between compressive contact and an element due to external stress [2], [3].The areas where the elements are in contact with each other must be carefully bonded so that internal forces can be transmitted evenly across the surface [3]. Positioning of the joints is often known as a limiting factor in the design process [4], [3].…”

Section: Introductionmentioning

confidence: 99%

“…In joint elements, internal forces are mostly distributed between compressive contact and an element due to external stress [2], [3].The areas where the elements are in contact with each other must be carefully bonded so that internal forces can be transmitted evenly across the surface [3]. Positioning of the joints is often known as a limiting factor in the design process [4], [3]. There is a difference between glued (permanent) and non-glued (temporary and removable) joints.…”

Section: Introductionmentioning

confidence: 99%

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Performance comparison of wood furniture joints fastened with Domino tenons and connectors

Baş

Csiha

Dénes

2023

Preprint

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Structural joints play a critical role in maintaining the integrity of furniture pieces during their whole life cycle. Several wood joint types and joint fasteners are available for wood furniture manufacturing aimed to simplify the production, to decrease the assembly time and to increase the strength, stability and lifetime of the finished products. Despite the relatively high number of structural connectors, more and more newly developed fittings appear in the market combining the advantages of the previous ones or introducing new solutions for the same problems. Just like the Domino joints - first introduced in the market in mid-2000`s – which combine the benefits of a conventional dowel and a tenon and mortise joint. The main goal of this research was to examine the strength and elastic properties of T- and L- type (corner) wood joints made with wood Domino dowels and plastic combined metallic Domino connectors, in order to compare the performance of the two fastener types. The results indicate that both T-joints and L corner joints made with wood Domino dowels have higher resistance than the joints made with plastic combined metallic Domino connections.

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“…The T-type, two-pin dowel joints strength is affected by a few parameters including the type of adhesive and properties of wood and wood composite materials by used, also a variety of dowel joint process parameters such as dowel spacing, dowel dimension, dowel position and dowel joint geometry configurations (Vassiliou et al 2016, Uysal and Haviarova 2018, Záborský et al 2018, Hao et al 2020, solid wood and wood based composite used in (Vassiliou et al 2016, Uysal and Haviarova 2018, Záborský et al 2018, dowel joint geometry configurations (Vassiliou et al 2016, Záborský et al 2018, Hao et al 2020, rail widths (Zhang et al 2003), configurations of joints (Yerlikaya and Aktas 2013), different cyclic load (Vassiliou et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Bending moment resistance of t-type joints reinforced with basalt and glass woven fabric materials

Karaman

2021

Maderas, Cienc. tecnol.

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This study investigated the bending moment resistance of T-type, two-pin dowel joints connected with Scotch pine dowel (Pinus slyvestris), beech dowel (Fagus orientalis), chestnut dowel (Castanea sativa) and oak dowel (Quercus petraea) and reinforced with basalt and glass woven fabric. The tests was carried out to determine the bending moment resistance of dowel joints. As a result of bending test, it was determined that one layer and two surfaces the reinforce with fiber woven fabrics increases the mechanical performance of furniture fasteners according to obtained data from tests conducted on the T-type, two pin dowel joints. The test samples prepared from the oak wooden give the higher moment values than the beech wooden. This study showed that the joining with the oak dowel was 13 % higher than the beech dowel, 32 % the chestnut dowel, and 43 % higher than the Scotch pine dowel (for the bending moment resistance), respectively. According to the bending moment resistance of the samples reinforced by fiber woven fabrics. The highest bending moment resistance value was obtained in the test specimens of reinforced with the basalt woven fabric, the lowest bending moment resistance value was obtained in the test specimens not reinforced (Control). In general, it was determined that the wood species by 3 %, wooden dowel species by 43 %, and fiber woven fabric types by 72 % have been effects on the results of the bending tests.

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The Effect of Selected Factors on Domino Joint Stiffness

Cited by 7 publications

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Influence of geometry on the stiffness of corner finger joints

Influence of geometry on the stiffness of corner finger joints

Performance comparison of wood furniture joints fastened with Domino tenons and connectors

Bending moment resistance of t-type joints reinforced with basalt and glass woven fabric materials

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