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Numerical and experimental study of compression wood influence on drying timber distortion
Chalmers University of Technology.ORCID iD: 0000-0001-5591-1045
Chalmers University of Technology.
Lund University.
2000 (English)In: Drying Technology, ISSN 0737-3937, E-ISSN 1532-2300, Vol. 18, no 8, p. 1897-1919Article in journal (Refereed) Published
Abstract [en]

In timber exposed to moisture variations, drying distortions is a serious problem that might result into sawn timber and other wood products unsuitable for construction purposes. Two characteristics of wood are that its behaviour is strongly orthotropic and that it is very sensitive to variations in moisture content. In addition, wood is characterised by variation in its properties from pith to bark. A further important property of wood, which affects its behaviour, is its spiral grain. For timber containing much compression wood the drying distortions are also highly dependent upon where the compression wood is located in the sawn boards. The present study concerns an experimental investigation of density, grain angles, shrinkage parameters and longitudinal elastic modulus in a number of spruce boards containing much compression wood. On the basis of the data obtained, numerical simulations have been carried out in order to determine the deformations that developed in the boards during changes in moisture content.

Place, publisher, year, edition, pages
2000. Vol. 18, no 8, p. 1897-1919
Keywords [en]
Chemical Engineering, Compression wood, Drying distortions, Finite element simulations, Compressive strength, Computer simulation, Deformation, Density (specific gravity), Elastic moduli, Finite element method, Moisture, Shrinkage, Wood, Spiral grain, Timber, Drying, wood, compression wood, drying distortions, finite element simulations
National Category
Engineering and Technology Wood Science
Research subject
Technology (byts ev till Engineering), Forestry and Wood Technology
Identifiers
URN: urn:nbn:se:lnu:diva-41234DOI: 10.1080/07373930008917817OAI: oai:DiVA.org:lnu-41234DiVA, id: diva2:800389
Available from: 2015-04-03 Created: 2015-03-22 Last updated: 2017-12-04Bibliographically approved

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Ormarsson, Sigurdur

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CiteExportLink to record
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Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf