A method to model wood by using ABAQUS finite element software. Part 1. Constitutive model and computational details

Florian Mirianon, Stefania Fortino, Tomi Toratti

    Research output: Book/ReportReport

    Abstract

    A structural analysis method for the long-term response of wood structures is presented in this report. This method has been developed with the finite element calculation software ABAQUS and its use requires - an effective computer - an ABAQUS licence - a Fortran licence compatible with the ABAQUS CAE version - the implementation scheme of the stress-strain relation for wood into the FE-program (UMAT subroutine for ABAQUS) - the implementation of the equation for moisture flow across the wood surface (DFLUX subroutine for ABAQUS). The forth and fifth components of the list above have been developed at The Technical Research Centre of Finland VTT. The material properties of timber in the grain direction and in the perpendicular-to-grain directions require defining a local cylindrical coordinate system for each piece of wood of the structure. The moisture transfer in wood is a function of the moisture flow on the wood surface and on moisture diffusion of wood. The response of wood to mechanical loading, moisture content changes and time was modelled by using a rheological model of wood implemented in a subroutine. The use of ABAQUS for detailed stress analyses of wood is demonstrated with examples.
    Original languageEnglish
    Place of PublicationEspoo
    PublisherVTT Technical Research Centre of Finland
    Number of pages51
    ISBN (Electronic)978-951-38-7107-9
    Publication statusPublished - 2008
    MoE publication typeD4 Published development or research report or study

    Publication series

    SeriesVTT Publications
    Number687
    ISSN1235-0621

    Fingerprint

    ABAQUS
    Constitutive models
    Wood
    Moisture
    Subroutines
    Computer aided engineering
    Timber
    Structural analysis
    Materials properties

    Keywords

    • timber
    • gluelam, moisture transfer
    • stress analysis
    • FEM
    • ABAQUS
    • creep
    • mechano-sorption
    • deformation
    • humidity

    Cite this

    Mirianon, F., Fortino, S., & Toratti, T. (2008). A method to model wood by using ABAQUS finite element software. Part 1. Constitutive model and computational details. Espoo: VTT Technical Research Centre of Finland. VTT Publications, No. 687
    Mirianon, Florian ; Fortino, Stefania ; Toratti, Tomi. / A method to model wood by using ABAQUS finite element software. Part 1. Constitutive model and computational details. Espoo : VTT Technical Research Centre of Finland, 2008. 51 p. (VTT Publications; No. 687).
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    title = "A method to model wood by using ABAQUS finite element software. Part 1. Constitutive model and computational details",
    abstract = "A structural analysis method for the long-term response of wood structures is presented in this report. This method has been developed with the finite element calculation software ABAQUS and its use requires - an effective computer - an ABAQUS licence - a Fortran licence compatible with the ABAQUS CAE version - the implementation scheme of the stress-strain relation for wood into the FE-program (UMAT subroutine for ABAQUS) - the implementation of the equation for moisture flow across the wood surface (DFLUX subroutine for ABAQUS). The forth and fifth components of the list above have been developed at The Technical Research Centre of Finland VTT. The material properties of timber in the grain direction and in the perpendicular-to-grain directions require defining a local cylindrical coordinate system for each piece of wood of the structure. The moisture transfer in wood is a function of the moisture flow on the wood surface and on moisture diffusion of wood. The response of wood to mechanical loading, moisture content changes and time was modelled by using a rheological model of wood implemented in a subroutine. The use of ABAQUS for detailed stress analyses of wood is demonstrated with examples.",
    keywords = "timber, gluelam, moisture transfer, stress analysis, FEM, ABAQUS, creep, mechano-sorption, deformation, humidity",
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    year = "2008",
    language = "English",
    series = "VTT Publications",
    publisher = "VTT Technical Research Centre of Finland",
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    Mirianon, F, Fortino, S & Toratti, T 2008, A method to model wood by using ABAQUS finite element software. Part 1. Constitutive model and computational details. VTT Publications, no. 687, VTT Technical Research Centre of Finland, Espoo.

    A method to model wood by using ABAQUS finite element software. Part 1. Constitutive model and computational details. / Mirianon, Florian; Fortino, Stefania; Toratti, Tomi.

    Espoo : VTT Technical Research Centre of Finland, 2008. 51 p. (VTT Publications; No. 687).

    Research output: Book/ReportReport

    TY - BOOK

    T1 - A method to model wood by using ABAQUS finite element software. Part 1. Constitutive model and computational details

    AU - Mirianon, Florian

    AU - Fortino, Stefania

    AU - Toratti, Tomi

    N1 - Project code: 17546

    PY - 2008

    Y1 - 2008

    N2 - A structural analysis method for the long-term response of wood structures is presented in this report. This method has been developed with the finite element calculation software ABAQUS and its use requires - an effective computer - an ABAQUS licence - a Fortran licence compatible with the ABAQUS CAE version - the implementation scheme of the stress-strain relation for wood into the FE-program (UMAT subroutine for ABAQUS) - the implementation of the equation for moisture flow across the wood surface (DFLUX subroutine for ABAQUS). The forth and fifth components of the list above have been developed at The Technical Research Centre of Finland VTT. The material properties of timber in the grain direction and in the perpendicular-to-grain directions require defining a local cylindrical coordinate system for each piece of wood of the structure. The moisture transfer in wood is a function of the moisture flow on the wood surface and on moisture diffusion of wood. The response of wood to mechanical loading, moisture content changes and time was modelled by using a rheological model of wood implemented in a subroutine. The use of ABAQUS for detailed stress analyses of wood is demonstrated with examples.

    AB - A structural analysis method for the long-term response of wood structures is presented in this report. This method has been developed with the finite element calculation software ABAQUS and its use requires - an effective computer - an ABAQUS licence - a Fortran licence compatible with the ABAQUS CAE version - the implementation scheme of the stress-strain relation for wood into the FE-program (UMAT subroutine for ABAQUS) - the implementation of the equation for moisture flow across the wood surface (DFLUX subroutine for ABAQUS). The forth and fifth components of the list above have been developed at The Technical Research Centre of Finland VTT. The material properties of timber in the grain direction and in the perpendicular-to-grain directions require defining a local cylindrical coordinate system for each piece of wood of the structure. The moisture transfer in wood is a function of the moisture flow on the wood surface and on moisture diffusion of wood. The response of wood to mechanical loading, moisture content changes and time was modelled by using a rheological model of wood implemented in a subroutine. The use of ABAQUS for detailed stress analyses of wood is demonstrated with examples.

    KW - timber

    KW - gluelam, moisture transfer

    KW - stress analysis

    KW - FEM

    KW - ABAQUS

    KW - creep

    KW - mechano-sorption

    KW - deformation

    KW - humidity

    M3 - Report

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    ER -

    Mirianon F, Fortino S, Toratti T. A method to model wood by using ABAQUS finite element software. Part 1. Constitutive model and computational details. Espoo: VTT Technical Research Centre of Finland, 2008. 51 p. (VTT Publications; No. 687).