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

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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).