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Micromechanics of creep and relaxation of wood. A review COST Action E35 2004-2008: Wood machining - micromechanics and fracture

Navi, Parviz ; Stanzl-Tschegg, Stefanie

In: Holzforschung, 2009, vol. 63, no. 2, p. 186-195

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    Titel
    • Micromechanics of creep and relaxation of wood. A review COST Action E35 2004-2008: Wood machining - micromechanics and fracture
    Autor
    • Navi, Parviz. Institute of Materials Science, Ecole Polytechnique Fédéral de Lausanne, Lausanne, Switzerland and Bern University of Applied Sciences, Biel, Switzerland
    • Stanzl-Tschegg, Stefanie. Institute of Physics and Materials Science, BOKU-University of Natural Resources and Applied Life Sciences, Vienna, Austria
    Dokumententyp
    • Postprint
    Sprache
    • Englisch
    Veröffentlicht in
    • Holzforschung, 2009, vol. 63, no. 2, p. 186-195. Walter de Gruyter
    Andere elektronische Ausgabe
    OAI-PMH-ID
    • oai:doc.rero.ch:299248
    Summary
    Wood, like all polymeric materials, shows viscoelastic behaviour. The time dependent behaviour of wood depends on material anisotropy, temperature, moisture and stresses. To predict the behaviour of wood, numerous mathematical models have been developed largely relying on experimental results. In this paper, time dependent viscoelastic behaviour of wood is reviewed under constant and cyclic climatic conditions, separately. More emphasis is given on results obtained in recent years on the behaviour of thin wood tissues, single fibres, thermo-viscoelasticity of wood, influence of hemicelluloses and the modelling of the effect of transient moisture at the molecular level on the mechanical response