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.
    @inproceedings{1af548b34667432ab580cc630fd6941d,
    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.",
    keywords = "finite element method, multiphase models, wood surface densification",
    author = "Andrea Genoese and Alessandra Genoese and Stefania Fortino and Lauri Rautkari",
    note = "Project code: 76248",
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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

    TY - GEN

    T1 - A computational approach for the hygro-thermal modelling of wood under surface densification

    AU - Genoese, Andrea

    AU - Genoese, Alessandra

    AU - Fortino, Stefania

    AU - Rautkari, Lauri

    N1 - Project code: 76248

    PY - 2012

    Y1 - 2012

    N2 - 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.

    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.

    KW - finite element method

    KW - multiphase models

    KW - wood surface densification

    M3 - Conference article in proceedings

    SN - 978-961-6144-35-3

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

    A2 - Jones, Dennis

    A2 - Militz, H.

    A2 - Petrič, M.

    A2 - Pohleven, F.

    A2 - Humar, M.

    A2 - Pavlič, M.

    PB - University of Ljubljana

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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