Impact Bending Strength as a Function of Selected Factors

Abstract

This article examines the influence of selected factors (wood species, densification, thickness, glue type, and number of cycles) on the impact bending strength (IBS) of solid and laminated wood. The evaluated properties were measured on samples of European beech (Fagus sylvatica L.) and common aspen (Populus tremula L.). Two types of glues were used for laminated wood: polyvinyl acetate (PVAc) and polyurethane (PUR). The highest IBS values were recorded in laminated beech specimens glued with polyvinyl acetate glue that were not subjected to cyclical loading.

Effect of wood species, adhesive type, and annual ring directions on the stiffness of rail to leg mortise and tenon furniture joints

“…It is often crucial to any type of wooden structure, such as wooden bridges, furniture construction, picture framing, and guitar skeletons. Joints represent a critical area of a structure (Noll 2009;Horman et al 2010;Gaff et al 2016). Horman et al (2010) used the finite element method to confirm that the individual joint strength has significant influence on the stiffness of the whole chair construction.…”

Effect of span length on the impact bending strength of poplar and pine woods

“…Some variables, such as density, wood type, moisture content, fiber angle, test machine type, load direction, span-to-depth ratio, knots and cracks, densification, and tree species affect impact bending strength (Kollmann and Cote, Jr. 1968;Bal 2016;Gaff et al 2016;Gašparík et al 2016;Bal and Bektaş 2018;Çavuş 2020). Several previous studies have investigated the effect of these factors.…”

“…Bucar and Merhar (2015) determined that impact bending strength increases with the density of Norway spruce wood. Gaff et al (2017) and Bal and Bektaş (2012) studied the effects of three species and adhesive type on the impact bending strength of LVL. Bal (2016) determined the impact bending strength of LVL in flatwise and edgewise directions for various span-to-depth ratios, and found a relationship between span-to-depth ratio and impact bending strength.…”