A 3D moisture-stress FEM analysis for time dependent problems in timber structures |
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Authors: | Stefania Fortino Florian Mirianon Tomi Toratti |
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Affiliation: | (1) Faculty of Civil and Geodetic Engineering, University of Ljubljana, Jamova 2, 1115 Ljubljana, Slovenia;(2) Slovenian National Building and Civil Engineering Institute, Dimičeva 12, 1000 Ljubljana, Slovenia; |
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Abstract: | This paper presents a 3D moisture-stress numerical analysis for timber structures under variable humidity and load conditions.
An orthotropic viscoelastic-mechanosorptive material model is specialized on the basis of previous models. Both the constitutive
model and the equations needed to describe the moisture flow across the structure are implemented into user subroutines of
the Abaqus finite element code and a coupled moisture-stress analysis is performed for several types of mechanical loads and
moisture changes. The presented computational approach is validated by analyzing some wood tests described in the literature
and comparing the computational results with the reported experimental data. |
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Keywords: | |
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