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  • Coupled two-dimensional modeling of viscoelastic creep of wood
    Huč, Sabina, gradbeništvo ; Svensson, Staffan
    Three coupled two-dimensional viscoelastic creep models for orthotropic material are analyzed. The models of different complexity are mathematically formulated and implemented in a finite element ... software. Required viscoelastic material parameters are determined by calibration procedure, where numerical results are compared against experimentally obtained viscoelastic strains caused by tensile or shear loading. Finally, a comparison method is used to evaluate the accuracy of strain predictions of each particular model. The analysis shows that all the models are able to accurately predict viscoelastic creep simultaneously in two perpendicular directions for various periods of time and wood species. Calculated numerical values of the viscoelastic material parameters suitable for the three models and wood species, i.e., Douglas fir (Pseudotsuga menziesii), Norway spruce (Picea abies), Japanese cypress (Chamaecyparis obtusa), and European beech (Fagus sylvatica L.), under constant tensile loading are also given.
    Vir: Wood Science and Technology. - ISSN 0043-7719 (Letn. 52, št. 1, jan. 2018, str. 29-43)
    Vrsta gradiva - članek, sestavni del
    Leto - 2018
    Jezik - angleški
    COBISS.SI-ID - 8771937
    DOI

vir: Wood Science and Technology. - ISSN 0043-7719 (Letn. 52, št. 1, jan. 2018, str. 29-43)
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