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    Plastic Buckling of Circular Cylindrical Shells Under Nonuniform Axial Loads

    Source: Journal of Applied Mechanics:;1999:;volume( 066 ):;issue: 002::page 374
    Author:
    D. Durban
    ,
    E. Ore
    DOI: 10.1115/1.2791059
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Elastoplastic buckling of circular cylindrical shells subjected to piecewise-uniform circumferentially varying axial loads is studied within the framework of linear stability analysis in conjunction with small strain plasticity. Both J2 flow and deformation theories with arbitrary hardening are used to model material behavior. Donnell-type equations are solved separately for each loaded segment with the interfacial continuity conditions providing the eigenvalue equation for the buckling parameter. Sample results are presented for pure bending and for uniform compression over a finite axial band. In all cases, deformation theory predicts buckling loads smaller than those obtained from flow theory. Loading nonuniformity becomes appreciable as the applied stresses concentrate over a narrow axial band. In that context we discuss the possibility of plastic buckling under the action of concentrated forces. The analysis is restricted to a membrane prebuckling state of stress and hence applicable to relatively short shells.
    keyword(s): Buckling , Circular cylindrical shells , Stress , Equations , Deformation , Flow (Dynamics) , Plasticity , Force , Stability , Compression , Eigenvalues , Membranes , Shells AND Hardening ,
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      Plastic Buckling of Circular Cylindrical Shells Under Nonuniform Axial Loads

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    http://yetl.yabesh.ir/yetl1/handle/yetl/121678
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    contributor authorD. Durban
    contributor authorE. Ore
    date accessioned2017-05-08T23:58:50Z
    date available2017-05-08T23:58:50Z
    date copyrightJune, 1999
    date issued1999
    identifier issn0021-8936
    identifier otherJAMCAV-26470#374_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/121678
    description abstractElastoplastic buckling of circular cylindrical shells subjected to piecewise-uniform circumferentially varying axial loads is studied within the framework of linear stability analysis in conjunction with small strain plasticity. Both J2 flow and deformation theories with arbitrary hardening are used to model material behavior. Donnell-type equations are solved separately for each loaded segment with the interfacial continuity conditions providing the eigenvalue equation for the buckling parameter. Sample results are presented for pure bending and for uniform compression over a finite axial band. In all cases, deformation theory predicts buckling loads smaller than those obtained from flow theory. Loading nonuniformity becomes appreciable as the applied stresses concentrate over a narrow axial band. In that context we discuss the possibility of plastic buckling under the action of concentrated forces. The analysis is restricted to a membrane prebuckling state of stress and hence applicable to relatively short shells.
    publisherThe American Society of Mechanical Engineers (ASME)
    titlePlastic Buckling of Circular Cylindrical Shells Under Nonuniform Axial Loads
    typeJournal Paper
    journal volume66
    journal issue2
    journal titleJournal of Applied Mechanics
    identifier doi10.1115/1.2791059
    journal fristpage374
    journal lastpage379
    identifier eissn1528-9036
    keywordsBuckling
    keywordsCircular cylindrical shells
    keywordsStress
    keywordsEquations
    keywordsDeformation
    keywordsFlow (Dynamics)
    keywordsPlasticity
    keywordsForce
    keywordsStability
    keywordsCompression
    keywordsEigenvalues
    keywordsMembranes
    keywordsShells AND Hardening
    treeJournal of Applied Mechanics:;1999:;volume( 066 ):;issue: 002
    contenttypeFulltext
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