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Parameter influence on moisture induced eigen-stresses in timber

Häglund, Martin LU (2010) In European Journal of Wood and Wood Products 68(4). p.397-406
Abstract
Moisture induced stress in timber is dependant on many factors. The driving force behind is the moisture variation in the surrounding air which causes induced stress due to restraint of hygro-expansion within timber elements (this can to some extent be seen analogous to thermally induced stress in steel). Today's computational power together with advanced constitutive models offers aaEuro-aEuro-valuable tool towards understanding and determining moisture actions on timber. However, it seems that the issue concerning uncertainties of the input parameters is seldom addressed. This paper presents results on how various factors affect the resulting moisture induced stress by aaEuro-aEuro-parametric study of the input values. A small numerical... (More)
Moisture induced stress in timber is dependant on many factors. The driving force behind is the moisture variation in the surrounding air which causes induced stress due to restraint of hygro-expansion within timber elements (this can to some extent be seen analogous to thermally induced stress in steel). Today's computational power together with advanced constitutive models offers aaEuro-aEuro-valuable tool towards understanding and determining moisture actions on timber. However, it seems that the issue concerning uncertainties of the input parameters is seldom addressed. This paper presents results on how various factors affect the resulting moisture induced stress by aaEuro-aEuro-parametric study of the input values. A small numerical change of one parameter may possibly result in aaEuro-aEuro-major change of calculated stress levels. It is for example, shown that coating (paint) and cross-sectional dimensions play an important role for spatial stress distribution. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
European Journal of Wood and Wood Products
volume
68
issue
4
pages
397 - 406
publisher
Springer
external identifiers
  • wos:000283091700004
  • scopus:77958018286
ISSN
0018-3768
DOI
10.1007/s00107-009-0377-2
language
English
LU publication?
yes
id
dffa1ed5-1510-485d-8318-c2faefe50df4 (old id 1720948)
date added to LUP
2010-12-06 10:57:56
date last changed
2018-05-29 09:34:55
@article{dffa1ed5-1510-485d-8318-c2faefe50df4,
  abstract     = {Moisture induced stress in timber is dependant on many factors. The driving force behind is the moisture variation in the surrounding air which causes induced stress due to restraint of hygro-expansion within timber elements (this can to some extent be seen analogous to thermally induced stress in steel). Today's computational power together with advanced constitutive models offers aaEuro-aEuro-valuable tool towards understanding and determining moisture actions on timber. However, it seems that the issue concerning uncertainties of the input parameters is seldom addressed. This paper presents results on how various factors affect the resulting moisture induced stress by aaEuro-aEuro-parametric study of the input values. A small numerical change of one parameter may possibly result in aaEuro-aEuro-major change of calculated stress levels. It is for example, shown that coating (paint) and cross-sectional dimensions play an important role for spatial stress distribution.},
  author       = {Häglund, Martin},
  issn         = {0018-3768},
  language     = {eng},
  number       = {4},
  pages        = {397--406},
  publisher    = {Springer},
  series       = {European Journal of Wood and Wood Products},
  title        = {Parameter influence on moisture induced eigen-stresses in timber},
  url          = {http://dx.doi.org/10.1007/s00107-009-0377-2},
  volume       = {68},
  year         = {2010},
}