Naslov
Bendability of Thermally Modified Oak (Quercus robur F)

Autori
Gaff, Milan ; Kačík, František ; Domljan, Danijela ; Vondrova, Veronika ; Babiak, Marian

Vrsta, podvrsta i kategorija rada
Radovi u zbornicima skupova, cjeloviti rad (in extenso), znanstveni

Izvornik
28th International Conference on Wood Science and Technology 2017, Implementation of wood science in woodworking sector / Župčić, I. ; Živković, V. ; Miklečić, J. - Zagreb : Fakultet strojarstva i brodogradnje Sveučilišta u Zagrebu, 2017, 143-152

ISBN
978-953-292-053-6

Skup
Implementaton of wood science in woodworking sector (ICWST)

Mjesto i datum
Zagreb, Hrvatska, 07.12.2017. - 08.12.2017

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Coefficient of bendability, Deflection at the limit of proportionality, Force at the limit of proportionality, Force at the modulus of rupture, Minimum bend radius

Sažetak
Thermally modified wood is increasingly used as a structural element in wooden buildings. Depending on the use of the material, different material characteristics that are telling of the bendability of the material can be used. Important characteristics include the force at the limit of proportionality FE, the deflection at the limit of proportionality YE, the force at the modulus of rupture FP and the deflection at the modulus of rupture YP. Since the flexibility also depends on the thickness of the material, it is appropriate to express the bendability by a ratio of the thickness of the material to the smallest achievable bend radius. In the research we used an analysis of the properties, using characteristics determining the minimum bend radius Rmin and the coefficient of bendability Koh. These characteristics were determined for thermally modified oak wood (Quercus robur F), focusing on determining the effect of the different temperatures used in the thermal modification (160, 180, 210 °C). The results measured in these test specimens were compared with the results measured in a set of test specimens not subjected to thermal modification (20 °C). To identify these material characteristics, software developed by us for accurately determining boundary points in force-deformation diagrams obtained during measurement was used. In this article we present a part of the research results, which resulted in new knowledge about the bendability of oak wood thermally modified at different temperatures.

Izvorni jezik
Engleski

Znanstvena područja
Drvna tehnologija

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