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    Inertia Effects on the Ductile Failure of Thin Rings

    Source: Journal of Applied Mechanics:;1982:;volume( 049 ):;issue: 001::page 31
    Author:
    A. M. Rajendran
    ,
    I. M. Fyfe
    DOI: 10.1115/1.3162066
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: The introduction of inertia terms into a theoretical model of thin ring expansion shows that classical plastic instability concepts, defined in terms of the local strain in the necking region, no longer apply. By introducing the role of void growth in triggering local necking, through a recently proposed constitutive equation for porous plastic materials, it is possible to overcome this difficulty. A criterion based on a critical void volume fraction provides the alternative means to predict failure. This theory was applied to a thin ring configuration, and the results were found to compare favorably with experimental values obtained from statically and dynamically loaded rings. The experimental techniques developed to handle the thin ring configuration are also described.
    keyword(s): Inertia (Mechanics) , Failure , Necking , Plastics AND Equations ,
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      Inertia Effects on the Ductile Failure of Thin Rings

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/95440
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    contributor authorA. M. Rajendran
    contributor authorI. M. Fyfe
    date accessioned2017-05-08T23:12:40Z
    date available2017-05-08T23:12:40Z
    date copyrightMarch, 1982
    date issued1982
    identifier issn0021-8936
    identifier otherJAMCAV-26193#31_1.pdf
    identifier urihttp://yetl.yabesh.ir/yetl/handle/yetl/95440
    description abstractThe introduction of inertia terms into a theoretical model of thin ring expansion shows that classical plastic instability concepts, defined in terms of the local strain in the necking region, no longer apply. By introducing the role of void growth in triggering local necking, through a recently proposed constitutive equation for porous plastic materials, it is possible to overcome this difficulty. A criterion based on a critical void volume fraction provides the alternative means to predict failure. This theory was applied to a thin ring configuration, and the results were found to compare favorably with experimental values obtained from statically and dynamically loaded rings. The experimental techniques developed to handle the thin ring configuration are also described.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleInertia Effects on the Ductile Failure of Thin Rings
    typeJournal Paper
    journal volume49
    journal issue1
    journal titleJournal of Applied Mechanics
    identifier doi10.1115/1.3162066
    journal fristpage31
    journal lastpage36
    identifier eissn1528-9036
    keywordsInertia (Mechanics)
    keywordsFailure
    keywordsNecking
    keywordsPlastics AND Equations
    treeJournal of Applied Mechanics:;1982:;volume( 049 ):;issue: 001
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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