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Modeling of the viscoelastic mechano-sorptive behavior in wood

Modeling of the viscoelastic mechano-sorptive behavior in wood This paper focuses on the modeling of linearly viscoelastic, mechano-sorptive behavior and its effects during moisture content changes in timber. A generalized Kelvin–Voigt model integrating specific hygro-lock springs is developed and associated, in series, with a shrinkage–swelling element. The coupling between moisture content state and mechanical state implies an evolution in rheological parameters. This alternative approach leads to incorporating strain blockings during the drying period as well as memory effects during wetting phases after unloading. An incremental formulation is also established using a finite-element software, and, moreover, an experimental validation from tensile creep-recovery tests is presented. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Mechanics of Time-Dependent Materials Springer Journals

Modeling of the viscoelastic mechano-sorptive behavior in wood

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References (42)

Publisher
Springer Journals
Copyright
Copyright © 2012 by Springer Science+Business Media Dordrecht
Subject
Engineering; Polymer Sciences; Mechanics; Continuum Mechanics and Mechanics of Materials; Characterization and Evaluation of Materials
ISSN
1385-2000
eISSN
1573-2738
DOI
10.1007/s11043-012-9171-3
Publisher site
See Article on Publisher Site

Abstract

This paper focuses on the modeling of linearly viscoelastic, mechano-sorptive behavior and its effects during moisture content changes in timber. A generalized Kelvin–Voigt model integrating specific hygro-lock springs is developed and associated, in series, with a shrinkage–swelling element. The coupling between moisture content state and mechanical state implies an evolution in rheological parameters. This alternative approach leads to incorporating strain blockings during the drying period as well as memory effects during wetting phases after unloading. An incremental formulation is also established using a finite-element software, and, moreover, an experimental validation from tensile creep-recovery tests is presented.

Journal

Mechanics of Time-Dependent MaterialsSpringer Journals

Published: Nov 1, 2012

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