Modelling the hygrothermal stress in curved glulam beams

Huazhang Zhou, Enchun Zhu, Stefania Fortino, Tomi Toratti

    Research output: Contribution to journalArticleScientificpeer-review

    8 Citations (Scopus)

    Abstract

    Variations of relative humidity and temperature result in moisture and temperature gradients in wood, which induce stress perpendicular to grain and may even cause cracking of the wood. To address the problem, a sequentially coupled three-dimensional (3D) finite element procedure was developed for investigation of hygrothermal stress in glulam beams, in which moisture and heat transfer were taken into consideration, and the hygrothermal deformation, creep, and mechanosorption were also included. The moisture content, temperature, and stress distributions in glulam beams were modelled successfully. The study provides insight into the mechanism of hygrothermal stress in glulam and also provides useful reference to the design of glulam structures and the design of lamina stacking sequence in production of glulam.
    Original languageEnglish
    Pages (from-to)129-140
    Number of pages12
    JournalThe Journal of Strain Analysis for Engineering Design
    Volume45
    DOIs
    Publication statusPublished - 2010
    MoE publication typeA1 Journal article-refereed

    Fingerprint

    Curved Beam
    Moisture
    Wood
    Modeling
    Content Distribution
    Lamina
    Moisture Content
    Relative Humidity
    Stacking
    Cracking
    Creep
    Stress Distribution
    Temperature Distribution
    Thermal gradients
    Perpendicular
    Stress concentration
    Heat Transfer
    Atmospheric humidity
    Temperature distribution
    Finite Element

    Keywords

    • wood
    • glulam
    • hygrothermal stress
    • creep
    • mechano-sorption
    • moisture and heat transfer
    • finite element
    • ProperTune

    Cite this

    @article{8644b48154264de59fdd197de289721b,
    title = "Modelling the hygrothermal stress in curved glulam beams",
    abstract = "Variations of relative humidity and temperature result in moisture and temperature gradients in wood, which induce stress perpendicular to grain and may even cause cracking of the wood. To address the problem, a sequentially coupled three-dimensional (3D) finite element procedure was developed for investigation of hygrothermal stress in glulam beams, in which moisture and heat transfer were taken into consideration, and the hygrothermal deformation, creep, and mechanosorption were also included. The moisture content, temperature, and stress distributions in glulam beams were modelled successfully. The study provides insight into the mechanism of hygrothermal stress in glulam and also provides useful reference to the design of glulam structures and the design of lamina stacking sequence in production of glulam.",
    keywords = "wood, glulam, hygrothermal stress, creep, mechano-sorption, moisture and heat transfer, finite element, ProperTune",
    author = "Huazhang Zhou and Enchun Zhu and Stefania Fortino and Tomi Toratti",
    note = "Project code: 17546",
    year = "2010",
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    language = "English",
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    journal = "The Journal of Strain Analysis for Engineering Design",
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    Modelling the hygrothermal stress in curved glulam beams. / Zhou, Huazhang; Zhu, Enchun; Fortino, Stefania; Toratti, Tomi.

    In: The Journal of Strain Analysis for Engineering Design, Vol. 45, 2010, p. 129-140.

    Research output: Contribution to journalArticleScientificpeer-review

    TY - JOUR

    T1 - Modelling the hygrothermal stress in curved glulam beams

    AU - Zhou, Huazhang

    AU - Zhu, Enchun

    AU - Fortino, Stefania

    AU - Toratti, Tomi

    N1 - Project code: 17546

    PY - 2010

    Y1 - 2010

    N2 - Variations of relative humidity and temperature result in moisture and temperature gradients in wood, which induce stress perpendicular to grain and may even cause cracking of the wood. To address the problem, a sequentially coupled three-dimensional (3D) finite element procedure was developed for investigation of hygrothermal stress in glulam beams, in which moisture and heat transfer were taken into consideration, and the hygrothermal deformation, creep, and mechanosorption were also included. The moisture content, temperature, and stress distributions in glulam beams were modelled successfully. The study provides insight into the mechanism of hygrothermal stress in glulam and also provides useful reference to the design of glulam structures and the design of lamina stacking sequence in production of glulam.

    AB - Variations of relative humidity and temperature result in moisture and temperature gradients in wood, which induce stress perpendicular to grain and may even cause cracking of the wood. To address the problem, a sequentially coupled three-dimensional (3D) finite element procedure was developed for investigation of hygrothermal stress in glulam beams, in which moisture and heat transfer were taken into consideration, and the hygrothermal deformation, creep, and mechanosorption were also included. The moisture content, temperature, and stress distributions in glulam beams were modelled successfully. The study provides insight into the mechanism of hygrothermal stress in glulam and also provides useful reference to the design of glulam structures and the design of lamina stacking sequence in production of glulam.

    KW - wood

    KW - glulam

    KW - hygrothermal stress

    KW - creep

    KW - mechano-sorption

    KW - moisture and heat transfer

    KW - finite element

    KW - ProperTune

    U2 - 10.1243/03093247JSA563

    DO - 10.1243/03093247JSA563

    M3 - Article

    VL - 45

    SP - 129

    EP - 140

    JO - The Journal of Strain Analysis for Engineering Design

    JF - The Journal of Strain Analysis for Engineering Design

    SN - 0309-3247

    ER -