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European Journal of Wood and Wood Products

Erschienen in:

01.11.2010 | Originals Originalarbeiten

Parameter influence on moisture induced eigen-stresses in timber

verfasst von: Martin Häglund

Erschienen in: European Journal of Wood and Wood Products | Ausgabe 4/2010

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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 a  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 a  parametric study of the input values. A small numerical change of one parameter may possibly result in a  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.

Vorheriger Artikel Up-milling and down-milling wood with different grain orientations – the cutting forces behaviour

Nächster Artikel Determination of the bond strength of treated wood strands embedded in a  cement matrix by means of a  pull-out test

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Titel: Parameter influence on moisture induced eigen-stresses in timber
verfasst von: Martin Häglund
Publikationsdatum: 01.11.2010
Verlag: Springer-Verlag
Erschienen in: European Journal of Wood and Wood Products / Ausgabe 4/2010
Print ISSN: 0018-3768
Elektronische ISSN: 1436-736X
DOI: https://doi.org/10.1007/s00107-009-0377-2

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