Determination of the Static Bending Properties of Green Beech and Oak Wood by the Frequency Resonance Technique

• DOI: 10.3390/f15010150
• Publication Date: 2024-01-11T08:21:41Z
• Authors: Patrik Nop; Valentino Cristini; Jan Zlámal; Mojtaba Hassan Vand; Vít Šeda; Jan Tippner
• Keywords: Elasticity

This article discusses the non-destructive evaluation of mechanical properties green wood. To estimate dynamic flexural modulus elasticity (MOED), a test (NDT) method—the frequency resonance technique (FRT)—was used. A three-point bending was carried out to determine static as (MOE), rupture (MOR), and toughness (Aw). presents results study comparing correlations between parameters beech (Fagus sylvatica L.) oak (Quercus robur wood, which further divided into heartwood sapwood. These species were chosen most widespread representatives diffuse-porous ring-porous hardwoods. found statistically significant differences in two species, except for MOR. Among investigated parameters, had higher values than (by 22.1% MOED, 9.5% MOE, 12.1% Aw). Furthermore, relevant (R > |0.7|) established MOED some parameters. stronger beech, due its more homogeneous structure showed less data variability oak.