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Drvna industrija, Vol. 74 No. 1, 2023.

Original scientific paper

https://doi.org/10.5552/drvind.2023.0010

Shear Force Capacities of H-Type Furniture Joints Constructed of Various Heat-Treated Wood Species

Mehmet Acar orcid id orcid.org/0000-0002-6258-2689 ; Mugla Sitki Kocman University, Faculty of Technology, Department of Woodworking Industrial Engineering, Kotekli/Mugla, Turkey
Engin Balikci ; Gumushane Vocational Education Center, 29000, Gumushane, Turkey
Tolga Kuskun ; Mugla Sitki Kocman University, Faculty of Technology, Department of Woodworking Industrial Engineering, Kotekli/Mugla, Turkey
Ali Kasal orcid id orcid.org/0000-0002-4632-0072 ; Mugla Sitki Kocman University, Faculty of Technology, Department of Woodworking Industrial Engineering, Kotekli/Mugla, Turkey
Yusuf Ziya Erdil orcid id orcid.org/0000-0003-3938-2168 ; Mugla Sitki Kocman University, Faculty of Technology, Department of Woodworking Industrial Engineering, Kotekli/Mugla, Turkey

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Abstract

The aim of this study was to investigate the effect of wood species, heat treatment, adhesive type and joint technique on shear force capacity of H-type furniture joints. For this purpose, an experimental design that consisted of 3 wood species, 2 treatment processes (untreated, heat-treated), 2 adhesive types (polyurethane (PUR), polyvinyl acetate (PVAc)) and 2 joint techniques (dowel, mortise-tenon (MT)) and 5 replications for each group were prepared, and accordingly, a total of 120 specimens were tested under static shear loads. Siberian pine (Pinus sibirica), Iroko (Chlorophora excelsa), and common ash (Fraxinus excelsior), which are commonly used in furniture constructions, were used as wood species. In general, iroko showed the highest shear force capacity between the wood species. The specimens constructed of heat-treated wood species showed lower shear force capacity by approximately 15 % in comparison to the same untreated specimens. MT joints showed better performance than dowel joints higher by approximately 21 %. PVAc adhesive gave higher values than PU adhesive by around 5 %. According to the results of four-way interactions, highest shear force capacities of H-type joints were obtained from “Common ash-PVAc-MT” combination in groups of untreated specimens and from “Iroko-PU-MT” combination in groups of heat-treated specimens.

Keywords

heat-treated wood; H-type joint; mortise and tenon joint; dowel joint; shear force capacity

Hrčak ID:

296388

URI

https://hrcak.srce.hr/296388

Publication date:

25.3.2023.

Article data in other languages: croatian

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