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Mechano-sorptive effects in wooden material

Mårtensson, Annika LU (1994) In Wood Science and Technology 28(6). p.437-450
Abstract
The effects on wood of simultaneous mechanical and moisture loading are studied. In order to clarify the mechano-sorptive behaviour of wood, a review of different phenomena presented in the literature is included. Based on this review a constitutive model is proposed for the case of uniaxial stress in the longitudinal direction. The validity of the model is checked independently against test results. The calculations show that the model is capable of describing the response of wood with reasonable accuracy. Simulations indicate that the response of small test specimens is more difficult to describe than that of larger beams. Some differences in behaviour are found to depend on loading mode and nature of moisture cycling. Very large and... (More)
The effects on wood of simultaneous mechanical and moisture loading are studied. In order to clarify the mechano-sorptive behaviour of wood, a review of different phenomena presented in the literature is included. Based on this review a constitutive model is proposed for the case of uniaxial stress in the longitudinal direction. The validity of the model is checked independently against test results. The calculations show that the model is capable of describing the response of wood with reasonable accuracy. Simulations indicate that the response of small test specimens is more difficult to describe than that of larger beams. Some differences in behaviour are found to depend on loading mode and nature of moisture cycling. Very large and fast moisture cycles seem to give larger mechano-sorption than smaller variations. The results of the simulations show that there is a significant influence of strain on the shrinkage and swelling response. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
KstrWood
in
Wood Science and Technology
volume
28
issue
6
pages
437 - 450
publisher
Springer
external identifiers
  • Scopus:0142122751
ISSN
1432-5225
DOI
10.1007/BF00225463
language
English
LU publication?
yes
id
a0456ce8-f5a4-4d2e-a692-b1497b37d4a1 (old id 1698281)
date added to LUP
2010-10-22 15:16:21
date last changed
2016-11-13 04:36:16
@misc{a0456ce8-f5a4-4d2e-a692-b1497b37d4a1,
  abstract     = {The effects on wood of simultaneous mechanical and moisture loading are studied. In order to clarify the mechano-sorptive behaviour of wood, a review of different phenomena presented in the literature is included. Based on this review a constitutive model is proposed for the case of uniaxial stress in the longitudinal direction. The validity of the model is checked independently against test results. The calculations show that the model is capable of describing the response of wood with reasonable accuracy. Simulations indicate that the response of small test specimens is more difficult to describe than that of larger beams. Some differences in behaviour are found to depend on loading mode and nature of moisture cycling. Very large and fast moisture cycles seem to give larger mechano-sorption than smaller variations. The results of the simulations show that there is a significant influence of strain on the shrinkage and swelling response.},
  author       = {Mårtensson, Annika},
  issn         = {1432-5225},
  keyword      = {KstrWood},
  language     = {eng},
  number       = {6},
  pages        = {437--450},
  publisher    = {ARRAY(0x9d84f08)},
  series       = {Wood Science and Technology},
  title        = {Mechano-sorptive effects in wooden material},
  url          = {http://dx.doi.org/10.1007/BF00225463},
  volume       = {28},
  year         = {1994},
}