Drvna industrija, Vol. 72 No. 2, 2021.
Izvorni znanstveni članak
https://doi.org/10.5552/drvind.2021.2028
MOR and MOE of Serbian Spruce (Picea omorika Pančić/Purkyně) Wood from Natural Stands
Danijela Petrović
orcid.org/0000-0001-7898-6189
; University of Banja Luka, Faculty of Forestry, 78000 Banja Luka, Bosnia and Herzegovina
Vojislav Dukić
; University of Banja Luka, Faculty of Forestry, 78000 Banja Luka, Bosnia and Herzegovina
Zdravko Popović
; University of Belgrade, Faculty of Forestry, Belgrade, Serbia
Nebojša Todorović
; University of Belgrade, Faculty of Forestry, Belgrade, Serbia
Sažetak
The paper presents the results of testing the bending stress of Serbian spruce wood from natural stands. In testing the samples, in addition to the modulus of rupture, the bending stress at the proportionality limit, the ratio between the stress at the proportionality limit and the modulus of rupture as well as the modulus of elasticity of wood were determined. The study included nine trees from natural stands, and a total of 261 samples were tested. Regression analysis determined the dependences of these mechanical properties on the annual ring width, the proportion of late wood and wood density, as well as the dependence of the modulus of elasticity on the modulus of rupture.
Ključne riječi
Picea omorika; modulus of rupture; modulus of elasticity; natural stands
Hrčak ID:
257223
URI
Datum izdavanja:
7.5.2021.
Posjeta: 1.109 *