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Abbravation: Journal of Wood Science

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SpringerOpen

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1611-4663

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Bending creep behavior of wood under cyclic moistu

Authors: Yaguang Zhou Masami Fushitani Takafumi Kubo Masayuki Ozawa
Publish Date: 1999/04
Volume: 45, Issue: 2, Pages: 113-
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Abstract

This study examined the bending creep behavior in the longitudinal direction of six species under cyclic moisture content MC changes For each species tests were made at 20°C with five cyclic relative humidity changes between 65 and 95 beginning from moisture adsorption A load corresponding to 25 of shortterm breaking load of the species was applied to the radial section of each specimen with fourpoint bending The effect of MC change on instantaneous compliance was also investigated under the same condition The quantitative relation between mechanosorptive MS compliance and MC change was examined and the material parameter KM for the relation in specific sorption was determined Results indicated that the total compliance in the six species with different behavior increases with sorption time As an integral part of total compliance instantaneous compliance changes linearly with MC and influences to a greater or lesser extent the total compliance behavior In general with increasing MC change the MS compliance linearly increases during the first adsorption and all desorption and decreases slightly during subsequent adsorption The material parameterK M varies markedly not only with species but also with specific sorption The first adsorption causes the largest deformation followed by desorption


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References

citation journal title=Wood Sci Technol citation title=Viscosity and entropy change in creep during water desorption for wood citation author=T Nakano citation volume=30 citation publication date=1996 citation pages=117125 citation doi=101007/BF00224963 citation id=CR23


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  2. Effects of urea treatment on litter decomposition in Pasania edulis forest soil
  3. Effects of five additive materials on mechanical and dimensional properties of wood cement-bonded boards
  4. Bearing properties of engineered wood products I: effects of dowel diameter and loading direction
  5. Screening method for wood extractives: direct cellulose thin-layer chromatography plate
  6. Load-carrying capacity of steel-to-timber joints with a pretensioned bolt
  7. Cultivation of Pleurotus eryngii on umbrella plant ( Cyperus alternifolius ) substrate
  8. Enhancement of saccharification by overexpression of poplar cellulase in sengon
  9. Film formation and some structural features of hemicellulose fractions from Pinus densiflora leaves
  10. Effect of element type on the internal bond quality of wood-based panels determined by three methods
  11. Comparative study of organic solvent-soluble and water-soluble lipophilic extractives from wheat straw 2: spectroscopic and thermal analysis
  12. Contribution of lignin to the reactivity of wood in chemical modifications II: influence of delignification on reaction with vaporous formaldehyde
  13. Water removal of wet veneer by roller pressing
  14. Wavelength dependence of machining performance in UV-, VIS- and NIR-laser cutting of wood
  15. Essential oil from the leaves of Cryptomeria japonica acts as a silverfish ( Lepisma saccharina ) repellent and insecticide
  16. Chemical composition, antioxidant and antibacterial activities of extracts from Schinus molle wood branch growing in Egypt
  17. Quantification of knots in dimension lumber using a single-pass X-ray radiation
  18. Development of an air-injection press for preventing blowout of particleboard IV: effects of air-injection conditions on board performance and formaldehyde emission
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  20. Applied data for modeling the behavior in cyclic torsion of beams in glued-laminated wood: influence of amplitude
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  22. Upgrading of urea formaldehyde-bonded reed and wheat straw particleboards using silane coupling agents
  23. Resistance of gamma-irradiated sapwood of Cryptomeria japonica to biological attacks
  24. The smell and odorous components of dried shiitake mushroom, Lentinula edodes I: relationship between sensory evaluations and amounts of odorous components
  25. Mechanism of mercerization revealed by X-ray diffraction
  26. Cesium adsorption from aqueous solutions onto Japanese oak charcoal III: effects of water-extraction treatment
  27. Radial variations of wood properties in Casuarina equisetifolia growing in Bangladesh
  28. Improvement of fire retardancy of plywood by incorporating boron or phosphate compounds in the glue
  29. Extractives relating to heartwood color changes in sugi ( Cryptomeria japonica ) by a combination of smoke-heating and UV radiation exposure
  30. Stress wave velocity, basic density, and compressive strength in 34-year-old Pinus merkusii planted in Indonesia
  31. Use of hemicellulase in sequence with hydrogen peroxide and laccase for improvement of teak veneer surface color
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  34. Radial variations of vibrational properties of three tropical woods

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