Influence of wood anisotropy on its mechanical properties in relation to the scale effect

Urszula Malaga-Toboła , Mariusz Łapka , Sylwester Tabor , Adam Niesłony , Pavol Findura

Abstract

As a construction material wood is characterized by many advantages: low density, a high degree of strength and stiffness, low thermal and electrical conductivity and chemical durability. However, it is an anisotropic material that contains structural elements of varying stiffness and strength. When moisture levels increase, it is characterized by the variability of its mechanical properties and creep resulting from rheological properties. Therefore, it is important to understand how the mechanical properties of wood vary depending on its heterogeneity, the orientation of the sample in relation to the directions of anisotropy and its natural disadvantages. The research material was obtained from the lumber of pine wood, which on the basis of the four-sided planing process was divided into 2 groups: A, B. The wood was subjected to strength tests specifying for appropriate groups of samples respectively: modulus of elasticity in static bending – group A-B, static bending strength - group A-B. The influence of wood anisotropy on the elasticity and strength properties of wood was demonstrated, this results from the variability of the wood element orientation and load direction in relation to the main directions of anisotropy.
Author Urszula Malaga-Toboła (FoPaPE / IoAEaI)
Urszula Malaga-Toboła,,
- Institute of Agricultural Engineering and Informatics
, Mariusz Łapka (FoPaPE / IoAEaI)
Mariusz Łapka,,
- Institute of Agricultural Engineering and Informatics
, Sylwester Tabor (FoPaPE / IoAEaI)
Sylwester Tabor,,
- Institute of Agricultural Engineering and Informatics
, Adam Niesłony
Adam Niesłony,,
-
, Pavol Findura
Pavol Findura,,
-
Journal seriesInternational Agrophysics, ISSN 0236-8722, e-ISSN 2300-8725, (N/A 70 pkt)
Issue year2019
Vol33
No3/2019
Pages337-345
Publication size in sheets0.5
Keywords in EnglishWood, structure, anisotropy, scale effects, mechanical properties
ASJC Classification1100 General Agricultural and Biological Sciences; 1111 Soil Science; 1507 Fluid Flow and Transfer Processes; 2312 Water Science and Technology
DOIDOI:10.31545/intagr/110808
URL http://www.international-agrophysics.org/pdf-110808-41084?filename=Influence%20of%20wood.pdf
Languageen angielski
LicenseJournal (articles only); author's original; Uznanie Autorstwa - Użycie Niekomercyjne - Bez utworów zależnych (CC-BY-NC-ND); after publication
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Score (nominal)70
Score sourcejournalList
Publication indicators WoS Citations = 0; Scopus SNIP (Source Normalised Impact per Paper): 2018 = 0.891; WoS Impact Factor: 2018 = 1.227 (2) - 2018=1.548 (5)
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