Naslov
Relationship between bending and tensile stress distribution in veneer plywood

Autori
Kljak, Jaroslav ; Brezović, Mladen

Izvornik
Forest Products Journal (0015-7473) 57 (2007), 12; 65-69

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

Ključne riječi
plywood optimization; stress and strain distribution; bending stress; tensile stress

Sažetak
This paper presents an optimization of plywood construction aimed at achieving the desired relationship between the bending and tensile properties of plywood. The optimization is based on the analysis of stress and strain distribution, the values of which were computed using the finite element method. The control panel was seven-ply okoume plywood. The control plywood had approximately the same bending properties parallel and perpendicular to the face grain direction, however, the tensile strength parallel to the face grain direction was substantially lower than that perpendicular to the face grain direction. Consequently, the objective of the research was to change the values of tensile stress without changing the values of bending stress, nominal plywood thickness or total number of layers. The research results show that by changing the thickness of only three layers located closest to the middle surface of the panel, full optimization of tensile stress was achieved, while retaining the three said parameters.

Izvorni jezik
Engleski

Znanstvena područja
Drvna tehnologija

POVEZANOST RADA