Experimental and numerical studies on the mechanical properties and behaviors of a novel wood dowel reinforced dovetail joint

Hu, Wengang; Luo, Mengyao; Liu, Yuanqiang; Xu, Wei; Konukcu, Arif Caglar

doi:10.1016/j.engfailanal.2023.107440

Cited by 10 publications

(5 citation statements)

References 23 publications

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“…After five days, the width of the scratch was again observed under a microscope and labelled as H 1 . The self-healing rate is calculated according to Equation (6).…”

Section: Antibacterial Properties Of Coatingsmentioning

confidence: 99%

“…Given a characterization of dry shrinkage and wet expansion, as well as the impact of environmental factors, the surface of wooden furniture often cracks. This phenomenon will reduce the service life of furniture [6,7]. Therefore, to improve the service life of the wooden furniture, people began to add a coating to the surface of the furniture to protect it [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Nano-Silver Solution Microcapsules Mixed with Rosin-Modified Shellac Microcapsules on the Performance of Water-Based Coating on Andoung Wood (Monopetalanthus spp.)

Zou,

Pan,

Zhang

et al. 2024

Coatings

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To obtain dual functions of antibacterial and self-healing of a coating, nano-silver solution microcapsules coated with urea formaldehyde resin were selected for antibacterial agents, and rosin-modified shellac microcapsules coated with melamine formaldehyde resin were selected for repairing agents. The optical, mechanical, antibacterial, self-healing, and other physicochemical properties of the coatings were analyzed. The method of adding two microcapsules independently did not affect the coating’s hardness. When the primer was prepared by self-healing microcapsules and the topcoats were prepared by antibacterial microcapsules, the hardness of the prepared coatings was maintained at 3 H, with the adhesion up to class 2, the impact strength up to 18 kg·cm, and the roughness as low as 1.144 µm. The elongation at fracture of the coatings prepared by adding microcapsules independently was improved by 2.2%. The self-healing microcapsules release the repair agents to improve the mechanical properties of the coatings. In terms of the antibacterial properties of the coatings, the method that involves adding the microcapsules independently is better than mixed adding. Against Escherichia coli, the antibacterial rate of coatings prepared by adding microcapsules independently reached 82%. Against Staphylococcus aureus, the antibacterial rate of coatings reached 83.3%. At the same time, the self-healing rate was up to 41.1%. The two microcapsules were added to the water-based coating independently to obtain antibacterial and self-healing functions with good comprehensive properties. By modifying coatings on the Andoung wood (Monopetalanthus spp.) with antibacterial microcapsules and self-healing microcapsules, it is possible to obtain good antibacterial properties, further protect the wood substrate, and broaden the application range of functional coatings.

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“…After five days, the width of the scratch was again observed under a microscope and labelled as H 1 . The self-healing rate is calculated according to Equation (6).…”

Section: Antibacterial Properties Of Coatingsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Nano-Silver Solution Microcapsules Mixed with Rosin-Modified Shellac Microcapsules on the Performance of Water-Based Coating on Andoung Wood (Monopetalanthus spp.)

Zou,

Pan,

Zhang

et al. 2024

Coatings

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show abstract

“…For optimization they used the Response Surface Methodology. Dowel reinforcement of a tongue and groove miter joint proved to be a good solution to improve the joint's cracking resistance [30]. The authors, Wu et al (2023), determined the optimal distance between the inserted dowels as 27 mm.…”

Section: Introductionmentioning

confidence: 99%

Mechanical Properties of Furniture Joints Using Loose Tenons and Connectors

Bas,

Denes,

Csiha

2024

Forests

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The investigation conducted in this study focused on assessing the withdrawal resistance of T-joints and the bending moment capacity in the tension and compression of corner joints. For samples, preparation glued-in loose tenons (Domino dowels) and dismountable connectors were used as connecting elements. The joints were made of European beech wood and a D3-grade PVAc adhesive was utilized for bonding. The effect of the joint type, the shoulders’ bonding, and the load application direction were investigated. The test results revealed that the withdrawal resistance of Domino dowel joints exhibited twice the strength compared to Domino connectors. Moreover, the presence of a bonded area on the shoulders did not significantly impact the strength of the joints. In the case of corner joints, the bending moment capacity in compression was notably influenced by the bond line on the shoulders, although such an effect was not significant in tension. Domino dowel joints provided a robust and reliable permanent connection between wooden elements, surpassing Domino connectors; however, in both cases, the strength values exceeded those of conventional dowels and cam lock connector joints.

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“…However, wood is prone to cracking, due to the dry shrinkage and wet expansion characteristics [7]. In addition, wood contains lignin, cellulose, and hemicellulose, which are easily degraded into glucose, water, and carbon dioxide, leading to wood decay and deterioration, and reducing service life [8][9][10]. A commonly used method to extend the service life of wooden products is to apply coatings on the surface of wood for protection [11,12].…”

Section: Introductionmentioning

confidence: 99%

Effect of Blending of Shellac, Carbonyl Iron Powder, and Carbonyl Iron Powder/Carbon Nanotube Microcapsules on the Properties of Coatings

Zhu,

Li,

Xia

et al. 2024

Coatings

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Nine sets of orthogonal experimental samples were prepared by examining four factors: shellac microcapsules, carbonyl iron powder (CIP) microcapsules, CIP/ carbon nanotube (CNT) microcapsules, and primer coating thickness. By testing the morphology and performance of the coating and using the fracture elongation of the coating as an orthogonal experimental analysis, the maximum factor affecting the fracture elongation of shellac, CIP, and CIP/CNT microcapsule coatings was determined. The first two factors that had a significant impact on the fracture elongation of the coating were the content of CIP/CNT microcapsules and shellac microcapsules. In order to further optimize the coating performance, important factor experiments were conducted, using the content of CIP/CNT microcapsules and shellac microcapsules as variables. It was found that the coating had the best performance when the content of CIP/CNT microcapsules was 7.0% and the content of shellac microcapsules was 4.0%. The optical properties of coatings with added shellac, CIP, and CIP/CNT microcapsules were tested, and the color difference and glossiness of the coatings showed little change. The mechanical properties of coatings with added shellac, CIP, and CIP/CNT microcapsules were tested. The blending of the three types of microcapsules enhanced the toughness of the coating to a certain extent, and suppressed the generation of micro-cracks, demonstrating a good self-healing effect. The electromagnetic-absorption performance of coatings with added shellac, CIP, and CIP/CNT microcapsules was tested. The blending of shellac, CIP, and CIP/CNT microcapsules exhibited two effective bands of electromagnetic absorption and a good absorption performance at a relatively wide frequency range. The combination of shellac, CIP, and CIP/CNT microcapsules endows the fiberboard surface with self-healing and electromagnetic-absorption functions, while maintaining the original performance of the water-based coating. The results can be used for application of surface coatings on wooden materials with dual functions of self-healing and electromagnetic absorption.

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Experimental and numerical studies on the mechanical properties and behaviors of a novel wood dowel reinforced dovetail joint

Cited by 10 publications

References 23 publications

Effect of Nano-Silver Solution Microcapsules Mixed with Rosin-Modified Shellac Microcapsules on the Performance of Water-Based Coating on Andoung Wood (Monopetalanthus spp.)

Effect of Nano-Silver Solution Microcapsules Mixed with Rosin-Modified Shellac Microcapsules on the Performance of Water-Based Coating on Andoung Wood (Monopetalanthus spp.)

Mechanical Properties of Furniture Joints Using Loose Tenons and Connectors

Effect of Blending of Shellac, Carbonyl Iron Powder, and Carbonyl Iron Powder/Carbon Nanotube Microcapsules on the Properties of Coatings

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