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    Postelastic Behavior of Single- and Double-Bolt Timber Connections

    Source: Journal of Structural Engineering:;2005:;Volume ( 131 ):;issue: 001
    Author:
    Nourhene Kharouf
    ,
    Ghyslaine McClure
    ,
    Ian Smith
    DOI: 10.1061/(ASCE)0733-9445(2005)131:1(188)
    Publisher: American Society of Civil Engineers
    Abstract: A nonlinear numerical model is developed to study the behavior of single- and double-bolted timber connections with relatively low member thickness-to-fastener diameter ratios. These structural joints tend to fail in a brittle fashion. Nonlinear geometry due to increased sliding contact between the bolt and the hole is modeled using the Lagrange multiplier algorithm. A plasticity-based constitutive compressive material model is developed to predict the nonlinear wood behavior in the contact zone(s). Numerical simulations of postelastic deformations of one- and two-bolt connections are compared to experimental results from tensile tests undertaken on double shear steel to glued-laminated-timber to steel connections. The established model is capable of tracing the inelastic deformations locally and globally and predicting unequal load fractions that are transferred by each bolt in two-bolt connections. Connection capacities estimated with the new elastoplastic model are bounded by classical elastic and fully plastic model predictions. Implementation of the new model is via finite element approximation representations.
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      Postelastic Behavior of Single- and Double-Bolt Timber Connections

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    http://yetl.yabesh.ir/yetl1/handle/yetl/34388
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    contributor authorNourhene Kharouf
    contributor authorGhyslaine McClure
    contributor authorIan Smith
    date accessioned2017-05-08T20:59:12Z
    date available2017-05-08T20:59:12Z
    date copyrightJanuary 2005
    date issued2005
    identifier other%28asce%290733-9445%282005%29131%3A1%28188%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/34388
    description abstractA nonlinear numerical model is developed to study the behavior of single- and double-bolted timber connections with relatively low member thickness-to-fastener diameter ratios. These structural joints tend to fail in a brittle fashion. Nonlinear geometry due to increased sliding contact between the bolt and the hole is modeled using the Lagrange multiplier algorithm. A plasticity-based constitutive compressive material model is developed to predict the nonlinear wood behavior in the contact zone(s). Numerical simulations of postelastic deformations of one- and two-bolt connections are compared to experimental results from tensile tests undertaken on double shear steel to glued-laminated-timber to steel connections. The established model is capable of tracing the inelastic deformations locally and globally and predicting unequal load fractions that are transferred by each bolt in two-bolt connections. Connection capacities estimated with the new elastoplastic model are bounded by classical elastic and fully plastic model predictions. Implementation of the new model is via finite element approximation representations.
    publisherAmerican Society of Civil Engineers
    titlePostelastic Behavior of Single- and Double-Bolt Timber Connections
    typeJournal Paper
    journal volume131
    journal issue1
    journal titleJournal of Structural Engineering
    identifier doi10.1061/(ASCE)0733-9445(2005)131:1(188)
    treeJournal of Structural Engineering:;2005:;Volume ( 131 ):;issue: 001
    contenttypeFulltext
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