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Measurement of the shear modulus of wood by the square-plate twist method

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Published/Copyright: August 16, 2006
Holzforschung
From the journal Volume 60 Issue 5

Abstract

In this research, square-plate twist test methods for obtaining the shear modulus of wood were examined. Square plates of western hemlock (Tsuga heterophylla Sarg.) were used as specimens. Twist tests were conducted according to three different methods for various length/thickness and span/plate diagonal ratios, and the shear modulus corresponding to each test condition was obtained. To examine the validity of shear modulus obtained by these tests, asymmetric four-point bending tests and finite element calculations were independently conducted and the results were compared. Specimens had a length/thickness ratio greater than 47 and were supported at two or three points close to each corner while applying a load to the remaining corner. Under these conditions, the shear modulus could be properly obtained over a wide range of span/plate diagonal ratios.

Keywords: finite element analysis; shear modulus; square-plate twist method; wood
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Corresponding author. Faculty of Science and Engineering, Shimane University, Nishikawazu-cho 1060, Matsue, Shimane 690-8504, Japan

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Published Online: 2006-08-16
Published in Print: 2006-08-01

©2006 by Walter de Gruyter Berlin New York

Articles in the same Issue

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  2. Determination of substituent distribution of viscoses by GPC
  3. Direct investigation of the structural properties of tension wood cellulose microfibrils using microbeam X-ray fibre diffraction
  4. Influence of amide content on the crystal structure of chitin
  5. Stepwise synthesis of chitooligosaccharides through a transition-state analogue substrate catalyzed by mutants of chitinase A1 from Bacillus circulans WL-12
  6. Synthesis of plantamajoside, a bioactive dihydroxyphenylethyl glycoside from Plantago major L.
  7. Diffusion of sulfide into Southern pine (Pinus taeda L.) and sweetgum (Liquidambar styraciflua L.) particles and chips
  8. Laccase-catalysed functionalisation of TMP with tyramine
  9. Wood liquefaction by ionic liquids
  10. Studies on the dehydrogenative polymerizations of monolignol β-glycosides. Part 2: Horseradish peroxidase-catalyzed dehydrogenative polymerization of isoconiferin
  11. Phenolic compounds in silver birch (Betula pendula Roth) wood
  12. Analysis of fragrance compositions of precious coniferous woods grown in Taiwan
  13. Influences of hot pressing temperature and surface structure on VOC emissions from OSB made of Scots pine
  14. Dimensional stability and photostability of octanoylated wood
  15. Measurement of the shear modulus of wood by the square-plate twist method
  16. Dielectric relaxation of water adsorbed on chemically treated woods
  17. Influences of drying on internal checking of spruce (Picea abies L.) heat-treated at 212°C
  18. The role of resol fortifiers in latex wood adhesives
  19. A simple anisotropy correction procedure for acoustic wood tomography
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  21. Density assessment of radiata pine: Sampling strategy revisited
https://doi.org/10.1515/HF.2006.090
Keywords for this article
finite element analysis; shear modulus; square-plate twist method; wood

Articles in the same Issue

  1. A report from the 2005 Japanese-European Workshop on “Cellulose and Functional Polysaccharides”
  2. Determination of substituent distribution of viscoses by GPC
  3. Direct investigation of the structural properties of tension wood cellulose microfibrils using microbeam X-ray fibre diffraction
  4. Influence of amide content on the crystal structure of chitin
  5. Stepwise synthesis of chitooligosaccharides through a transition-state analogue substrate catalyzed by mutants of chitinase A1 from Bacillus circulans WL-12
  6. Synthesis of plantamajoside, a bioactive dihydroxyphenylethyl glycoside from Plantago major L.
  7. Diffusion of sulfide into Southern pine (Pinus taeda L.) and sweetgum (Liquidambar styraciflua L.) particles and chips
  8. Laccase-catalysed functionalisation of TMP with tyramine
  9. Wood liquefaction by ionic liquids
  10. Studies on the dehydrogenative polymerizations of monolignol β-glycosides. Part 2: Horseradish peroxidase-catalyzed dehydrogenative polymerization of isoconiferin
  11. Phenolic compounds in silver birch (Betula pendula Roth) wood
  12. Analysis of fragrance compositions of precious coniferous woods grown in Taiwan
  13. Influences of hot pressing temperature and surface structure on VOC emissions from OSB made of Scots pine
  14. Dimensional stability and photostability of octanoylated wood
  15. Measurement of the shear modulus of wood by the square-plate twist method
  16. Dielectric relaxation of water adsorbed on chemically treated woods
  17. Influences of drying on internal checking of spruce (Picea abies L.) heat-treated at 212°C
  18. The role of resol fortifiers in latex wood adhesives
  19. A simple anisotropy correction procedure for acoustic wood tomography
  20. Evaluating growth strain of Eucalyptus globulus Labill. from SilviScan measurements
  21. Density assessment of radiata pine: Sampling strategy revisited
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