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Fitting parameters for softening of wet wood under quasi static loading
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S. Hamdan
Published/Copyright:
June 1, 2005
Abstract
This work calculates the parameters that can be fitted to experimental data on compressive tests of selected softwoods and hardwoods. The woods were subjected to temperatures between 0°C and 100°C during severe radial compression. The parameters of m, c and k under the different conditions can be expressed by a constitutive equation. For most woods, parameter k (related to the Poisson's ratio) is approximately 1 except for Carpinus tschonoskii Maxim (inushide) and Aesculus turninata Blume (tochinoki). Parameter m ranges between 0.8–1 except for Pinus densiflora Seib. et Zucc. (akamatsu pine) (1.2–1.6) and Pinus elliottii Engelm (slash pine) (from 2.1 down to 1.8). Parameter c ranges between 0.2–1.5 depending on the viscoelastic properties of the cell wall for both hardwood and softwood.
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Published Online: 2005-06-01
Published in Print: 2004-03-15
Copyright © 2004 by Walter de Gruyter GmbH & Co. KG
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