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Numerical and exper...
Numerical and experimental study of compression wood influence on drying timber distortion
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- Ormarsson, Sigurdur, 1963- (författare)
- Chalmers University of Technology
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- Petersson, Hans (författare)
- Chalmers University of Technology
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- Dahlblom, Ola (författare)
- Lund University
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(creator_code:org_t)
- Informa UK Limited, 2000
- 2000
- Engelska.
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Ingår i: Drying Technology. - : Informa UK Limited. - 0737-3937 .- 1532-2300. ; 18:8, s. 1897-1919
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- LANTBRUKSVETENSKAPER -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)
- AGRICULTURAL SCIENCES -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)
Nyckelord
- 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
- Forestry and Wood Technology
- Skog och träteknik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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