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    Model for Beam‐Mode Buckling of Buried Pipelines

    Source: Journal of Engineering Mechanics:;1985:;Volume ( 111 ):;issue: 002
    Author:
    Heedo Yun
    ,
    Stelios Kyriakides
    DOI: 10.1061/(ASCE)0733-9399(1985)111:2(235)
    Publisher: American Society of Civil Engineers
    Abstract: An attempt at modeling the so‐called “beam mode buckling” exhibited under compression in pipelines is presented. The line is modeled as a long heavy beam on a contacting surface. The reacting surface is modeled first as an elastic and subsequently as a rigid foundation, with the additional constraint that it only reacts to compressive loads. The problem is assumed to possess a localized imperfection. Under compressive axial load, a section of the beam lifts off the foundation. The problem is studied through a large deflection extensional beam nonlinear formulation. The large deflection response of the beam is found to exhibit a limit load which is shown to be imperfection sensitive. A parametric study of the problem as well as a number of examples with actual pipeline parameters are presented.
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      Model for Beam‐Mode Buckling of Buried Pipelines

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    http://yetl.yabesh.ir/yetl1/handle/yetl/73631
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    contributor authorHeedo Yun
    contributor authorStelios Kyriakides
    date accessioned2017-05-08T22:12:29Z
    date available2017-05-08T22:12:29Z
    date copyrightJanuary 1985
    date issued1985
    identifier other%28asce%290733-9399%281985%29111%3A2%28235%29.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/73631
    description abstractAn attempt at modeling the so‐called “beam mode buckling” exhibited under compression in pipelines is presented. The line is modeled as a long heavy beam on a contacting surface. The reacting surface is modeled first as an elastic and subsequently as a rigid foundation, with the additional constraint that it only reacts to compressive loads. The problem is assumed to possess a localized imperfection. Under compressive axial load, a section of the beam lifts off the foundation. The problem is studied through a large deflection extensional beam nonlinear formulation. The large deflection response of the beam is found to exhibit a limit load which is shown to be imperfection sensitive. A parametric study of the problem as well as a number of examples with actual pipeline parameters are presented.
    publisherAmerican Society of Civil Engineers
    titleModel for Beam‐Mode Buckling of Buried Pipelines
    typeJournal Paper
    journal volume111
    journal issue2
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/(ASCE)0733-9399(1985)111:2(235)
    treeJournal of Engineering Mechanics:;1985:;Volume ( 111 ):;issue: 002
    contenttypeFulltext
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