Mechanics of Time-Dependent Materials

, Volume 16, Issue 4, pp 439–460

Modeling of the viscoelastic mechano-sorptive behavior in wood

  • Frédéric Dubois
  • Jean-Marie Husson
  • Nicolas Sauvat
  • Nicaise Manfoumbi
Article

DOI: 10.1007/s11043-012-9171-3

Cite this article as:
Dubois, F., Husson, JM., Sauvat, N. et al. Mech Time-Depend Mater (2012) 16: 439. doi:10.1007/s11043-012-9171-3

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.

Keywords

Wood material Mechano-sorptive effect Moisture content Viscoelasticity 

Copyright information

© Springer Science+Business Media, B. V. 2012

Authors and Affiliations

  • Frédéric Dubois
    • 1
  • Jean-Marie Husson
    • 1
  • Nicolas Sauvat
    • 1
  • Nicaise Manfoumbi
    • 1
  1. 1.Heterogeneous Materials Research Group, Department of Civil Engineering and DurabilityUniversity of LimogesEgletonsFrance