Moisture considerably affects the macroscopic material behavior of wood. Since moisture takes effect on wood at various length scales, a computational multiscale approach is presented in this paper in order to explain and mathematically describe the macroscopic mechanical and transport behavior of wood. Such an approach allows for appropriate consideration of the underlying physical phenomena and for the suitable representation of the influence of microstructural characteristics of individual wood tissues on the macroscopic behavior. Continuum (poro-)micromechanics is applied as homogenization technique in order to link properties at different length scales. Building the model on universal constituents with tissue-independent properties and on universal building patterns, the only tissue-dependent input parameters are wood species, mass density, moisture content, and temperature. All these parameters are easily accessible, what renders the models powerful and easily applicable tools for practical timber engineering.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Chateau X. and Dormieux L. (2002). Micromechanics of saturated and unsaturated porous media. International Journal for Numerical and Analytical Methods in Geomechanics, 26: 831– 844.
Dormieux L., Kondo D., and Ulm F. J. (2006). Microporomechanics, Wiley & Sons.
Dormieux L., Molinari A. and Kondo D. (2002). Micromechanical approach to the behavior of poroelastic materials. Journal of the Mechanics and Physics of Solids, 50(10): 2203–2231.
Eitelberger J. and Hofstetter K. (2009). Multiscale homogenization model for transport processes in wood below the fiber saturation point, in preparation.
Eshelby J. D. (1957). The determination of the elastic field of an ellipsoidal inclusion and related problems. Proceedings of the Royal Society of London Series A, Mathematical and Physical Sciences, 241(1226): 376–396.
Hofstetter K., Bader Th. K., Hellmich Ch. and Eberhardsteiner J. (2006). Wood strength properties predicted from microstructure and composition, European Journal of Mechanics, submitted for publication.
Hofstetter K., Hellmich Ch., and Eberhardsteiner J. (2005). Development and experimental verification of a continuum micromechanics model for the elasticity of wood. Europ. J. Mech. A/Solids, 24: 1030–1053.
Hellmich C. and Ulm F. J. (2005). Drained and undrained poroelastic properties of healthy and pathological bone: A poro-micromechanical investigation. Transp. Porous Media, 58(3): 243–268.
Suquet P. (1997). Continuum Micromechanics. Springer Verlag, New York.
Zaoui A. (2002). Continuum micromechanics: Survey. ASCE J. Eng. Mech., 128: 808–816.
Zimmermann T., Sell J., and Eckstein D. (1994). Rasterelektronenmikroskopische untersuchungen an zugbruchflächen von fichtenholz. Holz als Roh- und Werkstoff, 52: 223–229 [in German].
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2009 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Hofstetter, K., Eitelberger, J., Bader, T.K., Hellmich, C., Eberhardsteiner, J. (2009). Computational Multiscale Approach to the Mechanical Behavior and Transport Behavior of Wood. In: Yuan, Y., Cui, J., Mang, H.A. (eds) Computational Structural Engineering. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-2822-8_8
Download citation
DOI: https://doi.org/10.1007/978-90-481-2822-8_8
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-2821-1
Online ISBN: 978-90-481-2822-8
eBook Packages: EngineeringEngineering (R0)