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Intra-Ring Variations in the Rolling Shear Modulus of Spruce Wood
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Jean-François Dumail
Published/Copyright:
June 1, 2005
Summary
The mechanical properties of wood are highly related to its structure, and knowledge regarding the influence of, for instance, density and fiber wall structure is needed for a better utilisation of the wood material. In this work, the Iosipescu method was used to test wood in rolling shear in order to establish the intra-ring variations in the wet shear modulus of spruce wood. The shear modulus increased from the earlywood to the latewood within the annual rings. This increase in the wet shear modulus was explained to 80% by the variations in the density of the wood.
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Published Online: 2005-06-01
Published in Print: 2001-09-19
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
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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
