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Moisture-dependent orthotropic elasticity of beech wood

Hering, Stefan ; Keunecke, Daniel ; Niemz, Peter

In: Wood Science and Technology, 2012, vol. 46, no. 5, p. 927-938

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    Titre
    • Moisture-dependent orthotropic elasticity of beech wood
    Auteur
    • Hering, Stefan. Institute for Building Materials (Wood Physics), ETH Zurich, 8093, Zurich, Switzerland
    • Keunecke, Daniel. Institute for Building Materials (Wood Physics), ETH Zurich, 8093, Zurich, Switzerland
    • Niemz, Peter. Institute for Building Materials (Wood Physics), ETH Zurich, 8093, Zurich, Switzerland
    Type de document
    • Postprint
    Langue
    • Anglais
    Publié dans
    • Wood Science and Technology, 2012, vol. 46, no. 5, p. 927-938. Springer-Verlag
    Autre version électronique
    Classification
    • Technologie, Sciences de l'ingénieur
    Identifiant OAI-PMH
    • oai:doc.rero.ch:313548
    Summary
    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