A computational approach for the hygro-thermal modelling of wood under surface densification

Andrea Genoese, Alessandra Genoese, Stefania Fortino, Lauri Rautkari

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

The high temperature process of wood surface densification increases the wood density in the transverse direction under compression. The recent experimental research has pointed out the influence of the process parameters on the development of the density profiles in the modified samples. The numerical modelling can help to optimize the experimental work which is often expensive due to the large amount of tests required to check the influence of the process 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 hygro-thermal equations of the problem. The relationship between the numerical profiles of moisture content and the experimental density profiles is discussed.
Original languageEnglish
Title of host publicationProceedings of the Sixth European Conference on Wood Modification ECWM6 2012
EditorsDennis Jones, H. Militz, M. Petrič, F. Pohleven, M. Humar, M. Pavlič
PublisherUniversity of Ljubljana
Number of pages8
ISBN (Print)978-961-6144-35-3
Publication statusPublished - 2012
MoE publication typeA4 Article in a conference publication
EventThe Sixth European Conference on Wood Modification, ECWM6 2012 - Ljubljana, Slovenia
Duration: 17 Sep 201218 Sep 2012

Conference

ConferenceThe Sixth European Conference on Wood Modification, ECWM6 2012
Abbreviated titleECWM6
CountrySlovenia
CityLjubljana
Period17/09/1218/09/12

Fingerprint

Densification
Wood
Finite element method
Subroutines
Compaction
Moisture
Hot Temperature
Temperature

Keywords

  • finite element method
  • multiphase models
  • wood surface densification

Cite this

Genoese, A., Genoese, A., Fortino, S., & Rautkari, L. (2012). A computational approach for the hygro-thermal modelling of wood under surface densification. In D. Jones, H. Militz, M. Petrič, F. Pohleven, M. Humar, & M. Pavlič (Eds.), Proceedings of the Sixth European Conference on Wood Modification ECWM6 2012 University of Ljubljana.
Genoese, Andrea ; Genoese, Alessandra ; Fortino, Stefania ; Rautkari, Lauri. / A computational approach for the hygro-thermal modelling of wood under surface densification. Proceedings of the Sixth European Conference on Wood Modification ECWM6 2012 . editor / Dennis Jones ; H. Militz ; M. Petrič ; F. Pohleven ; M. Humar ; M. Pavlič. University of Ljubljana, 2012.
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title = "A computational approach for the hygro-thermal modelling of wood under surface densification",
abstract = "The high temperature process of wood surface densification increases the wood density in the transverse direction under compression. The recent experimental research has pointed out the influence of the process parameters on the development of the density profiles in the modified samples. The numerical modelling can help to optimize the experimental work which is often expensive due to the large amount of tests required to check the influence of the process 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 hygro-thermal equations of the problem. The relationship between the numerical profiles of moisture content and the experimental density profiles is discussed.",
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Genoese, A, Genoese, A, Fortino, S & Rautkari, L 2012, A computational approach for the hygro-thermal modelling of wood under surface densification. in D Jones, H Militz, M Petrič, F Pohleven, M Humar & M Pavlič (eds), Proceedings of the Sixth European Conference on Wood Modification ECWM6 2012 . University of Ljubljana, The Sixth European Conference on Wood Modification, ECWM6 2012, Ljubljana, Slovenia, 17/09/12.

A computational approach for the hygro-thermal modelling of wood under surface densification. / Genoese, Andrea; Genoese, Alessandra; Fortino, Stefania; Rautkari, Lauri.

Proceedings of the Sixth European Conference on Wood Modification ECWM6 2012 . ed. / Dennis Jones; H. Militz; M. Petrič; F. Pohleven; M. Humar; M. Pavlič. University of Ljubljana, 2012.

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

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AB - The high temperature process of wood surface densification increases the wood density in the transverse direction under compression. The recent experimental research has pointed out the influence of the process parameters on the development of the density profiles in the modified samples. The numerical modelling can help to optimize the experimental work which is often expensive due to the large amount of tests required to check the influence of the process 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 hygro-thermal equations of the problem. The relationship between the numerical profiles of moisture content and the experimental density profiles is discussed.

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BT - Proceedings of the Sixth European Conference on Wood Modification ECWM6 2012

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Genoese A, Genoese A, Fortino S, Rautkari L. A computational approach for the hygro-thermal modelling of wood under surface densification. In Jones D, Militz H, Petrič M, Pohleven F, Humar M, Pavlič M, editors, Proceedings of the Sixth European Conference on Wood Modification ECWM6 2012 . University of Ljubljana. 2012