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Influence of Various Wood Species and Cross-Sections on Strength of a Dowel Welding Joint


Župčić, Ivica; Vlaović, Zoran; Domljan, Danijela; Grbac, Ivica
Influence of Various Wood Species and Cross-Sections on Strength of a Dowel Welding Joint // Drvna industrija : znstveni časopis za pitanja drvne tehnologije, 62 (2014), 2; 121-127 doi:10.5552/drind.2014.1324 (međunarodna recenzija, članak, znanstveni)


Naslov
Influence of Various Wood Species and Cross-Sections on Strength of a Dowel Welding Joint
(Utjecaj vrste drva i presjeka na čvrstoću zavarenog moždanika)

Autori
Župčić, Ivica ; Vlaović, Zoran ; Domljan, Danijela ; Grbac, Ivica

Izvornik
Drvna industrija : znstveni časopis za pitanja drvne tehnologije (0012-6772) 62 (2014), 2; 121-127

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Welding of wood; dowel joints; withdrawal strength; embedded force; wood species; anatomical orientation
(Masivnoga drva; spoj s moždanikom; vlačna čvrstoća; izvlačna sila; vrsta drva; tip presjeka)

Sažetak
Rotation welding is a new method used in wood welding. Heat that develops due to the friction on contact surfaces softens and melts the wood structure (melt is produced). When the friction stops, the melt cools down and solidifi es forming a fi rm joint. This research is based on the examination of the infl uence of various wood species and cross-sections on the strength of joints produced by rotational welding. Using rotation frequency and shifts in the orientation of the horizontal axis, a beech dowel is welded to a base made of common beach (Fagus sylvatica L.), pedunculate oak Quercus robur L.) and Norway spruce (Picea abies L.) (hereinafter only beech, oak and spruce). Welding direction is both parallel to the orientation of the base fibres (PP) and perpendicular to the orientation of the base fibres (R, RT, T). Research results indicate that the dowel welded to the beech base retains the largest strength, whereas the dowel welded to the spruce base reveals the weakest results. Based on the research results, it can be concluded that beech dowels welded in the direction of beech and oak bases have the best strength of a joint. In spruce samples, reaction wood was used (compression wood in conifers) with somewhat different distribution of strength depending on the welding direction.

Izvorni jezik
Engleski

Znanstvena područja
Drvna tehnologija



POVEZANOST RADA


Projekt / tema
068-0680720-0708 - Razvoj proizvoda od drva s ciljem očuvanja zdravlja (Ivica Grbac, )
068-0680720-0710 - Novi materijali, tehnološki procesi i proizvodi u finalnoj obradi drva (Andrija Bogner, )

Ustanove
Šumarski fakultet, Zagreb

Časopis indeksira:


  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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