Journal of Materials Science

, Volume 48, Issue 21, pp 7603–7612 | Cite as

FEM simulation of the hygro-thermal behaviour of wood under surface densification at high temperature

  • Stefania Fortino
  • Andrea Genoese
  • Alessandra Genoese
  • Lauri Rautkari
Article
First Online:
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Accepted:

Abstract

Surface densification of solid wood increases the density on the surface, when compressed by single side heated press. A recent experimental study has pointed out the influence of the process parameters on the development of the density profiles in the modified samples. Numerical modelling can help to optimize the experimental work which is often time consuming and laborious due to the large amount of experiments required to check the influence of the pressing parameters. In the present work, a FEM simulation of the hygro-thermal behaviour of wood under surface densification is proposed by using a three-dimensional hygro-thermal model based on earlier literature approaches. The model is implemented in a user subroutine of the FEM code Abaqus starting from the definition of a weak form of the governing hygro-thermal equations of the problem. The numerical profiles of moisture content and temperature during the wood densification process are simulated for some wood specimens tested in a previous study. Conclusions are given on the relationship between these profiles and the experimental density profiles due to different process parameters.

Keywords

Closing Time Surface Densification Solid Wood Multiphase Model User Subroutine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Notes

Acknowledgements

This research was supported by the VTT project IMAGO. The Doctorate School of Science and Technique Bernardino Telesio (Doctorate Degree Programme in Computational Mechanics) and the International Mobility funding of University of Calabria, Italy, that allowed the authors Alessandra Genoese and Andrea Genoese to undertake a research stage at VTT, are gratefully acknowledged.

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Copyright information

© Springer Science+Business Media New York 2013

Authors and Affiliations

  • Stefania Fortino
    • 1
  • Andrea Genoese
    • 2
  • Alessandra Genoese
    • 2
  • Lauri Rautkari
    • 3
    • 4
  1. 1.VTT Technical Research Centre of FinlandEspooFinland
  2. 2.Department of Engineering ModellingUniversity of CalabriaArcavacata di RendeItaly
  3. 3.School of Chemical TechnologyAalto UniversityAalto, EspooFinland
  4. 4.Forest Products Research Institute, Joint Research Institute for Civil and Environmental Engineering, School of Engineering and the Built EnvironmentEdinburgh Napier UniversityEdinburghUK

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