Wood Science and Technology

, Volume 46, Issue 5, pp 927–938

Moisture-dependent orthotropic elasticity of beech wood

Original

DOI: 10.1007/s00226-011-0449-4

Cite this article as:
Hering, S., Keunecke, D. & Niemz, P. Wood Sci Technol (2012) 46: 927. doi:10.1007/s00226-011-0449-4

Abstract

Elastic material properties are one of the most important material characteristics in mechanical modelling. Wood with distinctively different properties in the longitudinal, radial and tangential directions exhibits a strong moisture-dependent material characteristic in the elastic range. In order to characterise beech wood as an orthotropic material, all of the independent elastic properties were determined at different moisture conditions. These characteristic properties have never been determined before as a function of moisture content yet are vital to the field of wood modelling. All elastic parameters, except for some Poisson’s ratios, show a decrease in stiffness with increasing moisture content. In comparison to available literature references at a moisture content of ω ≈ 12%, the identified values were of the same order of magnitude. The determined material properties can be used to investigate the mechanical behaviour of beech wood structures including different moisture conditions.

Copyright information

© Springer-Verlag 2011

Authors and Affiliations

  1. 1.Institute for Building Materials (Wood Physics)ETH ZurichZurichSwitzerland