The Influence of Rays on the Transverse Elastic Anisotropy in Green Wood of Deciduous Trees
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I. Burgert
Summary
The green wood of twelve deciduous tree species was investigated regarding its radial and tangential moduli of elasticity measured in tension (ER and ET, respectively). In addition, the wood density and the volume fraction of rays were determined. A strong positive correlation was found between structural and stiffness properties. A simple two component model was derived for the relationship between the transverse elastic anisotropy factor (i.e., ER/ET) of the green wood and the relative volume fraction of the axial and ray tissues. In the radial direction of the wood, the modulus of elasticity is influenced by the wood density and the volume fraction of rays; in tangential direction only the density seems to be important. However, the comparison between the elastic anisotropy and the volume fraction of rays indicates that the rays may have an indirect influence due to their shape.
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
Articles in the same Issue
- The Influence of Rays on the Transverse Elastic Anisotropy in Green Wood of Deciduous Trees
- The Effect of Varying Latewood Proportion on the Radial Distribution of Lignin Content in a Pine Stem
- Effects of Environmental Factors on the Color of Sugi (Cryptomeria japonica D. Don) Yellowish Heartwood
- Influence of Tannin-Copper Complexes as Preservatives for Wood on Mechanism of Decomposition by Brown-Rot Fungus Fomitopsis palustris
- Characteristics of Sludges Produced by Destabilization of CCA Preservative Solutions
- Extractives and Structural Components in Wood and Bark of Endemic Oak Quercus vulcanica Boiss
- Fragmentation of Suberin and Composition of Aliphatic Monomers Released by Methanolysis of Cork from Quercus suber L.,Analysed by GC-MS, SEC and MALDI-MS
- Controlled Assembly of Glucuronoxylans onto Cellulose Fibres
- Solid State NMR Studies on Inhomogeneous Structure of Fibre Wall in Kraft Pulp
- Characterizing the Surface Roughness of Thermomechanical Pulp Fibers with Atomic Force Microscopy
- Thermal Decomposition of Cellulose Crystallites in Wood
- Damage and Fracture Mechanisms during Mode I and III Loading of Wood
- Directional Characteristics of Near Infrared Light Reflected from Wood
- An Investigation of Selected Factors that Influence Hardwood Wettability
- Intra-Ring Variations in the Rolling Shear Modulus of Spruce Wood
- Study on Alkali-Accessible Chromophores from Unbleached Kraft Pulp
- Addition of Boron Based Compound in the LVL Glueline: Effect on the Mechanical Properties and the Leaching of Boron
Articles in the same Issue
- The Influence of Rays on the Transverse Elastic Anisotropy in Green Wood of Deciduous Trees
- The Effect of Varying Latewood Proportion on the Radial Distribution of Lignin Content in a Pine Stem
- Effects of Environmental Factors on the Color of Sugi (Cryptomeria japonica D. Don) Yellowish Heartwood
- Influence of Tannin-Copper Complexes as Preservatives for Wood on Mechanism of Decomposition by Brown-Rot Fungus Fomitopsis palustris
- Characteristics of Sludges Produced by Destabilization of CCA Preservative Solutions
- Extractives and Structural Components in Wood and Bark of Endemic Oak Quercus vulcanica Boiss
- Fragmentation of Suberin and Composition of Aliphatic Monomers Released by Methanolysis of Cork from Quercus suber L.,Analysed by GC-MS, SEC and MALDI-MS
- Controlled Assembly of Glucuronoxylans onto Cellulose Fibres
- Solid State NMR Studies on Inhomogeneous Structure of Fibre Wall in Kraft Pulp
- Characterizing the Surface Roughness of Thermomechanical Pulp Fibers with Atomic Force Microscopy
- Thermal Decomposition of Cellulose Crystallites in Wood
- Damage and Fracture Mechanisms during Mode I and III Loading of Wood
- Directional Characteristics of Near Infrared Light Reflected from Wood
- An Investigation of Selected Factors that Influence Hardwood Wettability
- Intra-Ring Variations in the Rolling Shear Modulus of Spruce Wood
- Study on Alkali-Accessible Chromophores from Unbleached Kraft Pulp
- Addition of Boron Based Compound in the LVL Glueline: Effect on the Mechanical Properties and the Leaching of Boron
