Numerical modeling of sandwich panel response to ballistic loading - energy balance for varying impactor geometries

Jørgen Asbøl Kepler, Michael Rygaard Hansen

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

    6 Citationer (Scopus)

    Resumé

    Udgivelsesdato: NOV
    OriginalsprogEngelsk
    TidsskriftJournal of Sandwich Structures & Materials
    Vol/bind9
    Udgave nummer6
    Sider (fra-til)553-570
    ISSN1099-6362
    StatusUdgivet - 2007

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    Ballistics
    Energy balance
    Momentum
    Geometry
    Kinetic energy
    Shear deformation
    Numerical models
    Conservation
    Compliance

    Citer dette

    @article{71be1120bdee11dca96e000ea68e967b,
    title = "Numerical modeling of sandwich panel response to ballistic loading - energy balance for varying impactor geometries",
    abstract = "A sandwich panel is described by an axisymmetric lumped mass- spring model. The panel compliance is simplified, considering only core shear deformation uniformly distributed across the core thickness. Transverse penetrating impact is modeled for impactors of diameters comparable to the panel thickness but significantly smaller than panel length dimensions. Experimental data for the total loss in impactor kinetic energy and momentum and estimated damage energy are described. For a selection of impactor tip shapes, the numerical model is used to evaluate different simplified force histories between the impactor and the panel during penetration. The force histories are selected from a primary criterion of conservation of linear momentum in the impactor-panel system, and evaluated according to agreement with the total measured energy balance.",
    author = "Kepler, {J{\o}rgen Asb{\o}l} and Hansen, {Michael Rygaard}",
    year = "2007",
    language = "English",
    volume = "9",
    pages = "553--570",
    journal = "Journal of Sandwich Structures & Materials",
    issn = "1099-6362",
    publisher = "SAGE Publications",
    number = "6",

    }

    Numerical modeling of sandwich panel response to ballistic loading - energy balance for varying impactor geometries. / Kepler, Jørgen Asbøl; Hansen, Michael Rygaard.

    I: Journal of Sandwich Structures & Materials, Bind 9, Nr. 6, 2007, s. 553-570.

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

    TY - JOUR

    T1 - Numerical modeling of sandwich panel response to ballistic loading - energy balance for varying impactor geometries

    AU - Kepler, Jørgen Asbøl

    AU - Hansen, Michael Rygaard

    PY - 2007

    Y1 - 2007

    N2 - A sandwich panel is described by an axisymmetric lumped mass- spring model. The panel compliance is simplified, considering only core shear deformation uniformly distributed across the core thickness. Transverse penetrating impact is modeled for impactors of diameters comparable to the panel thickness but significantly smaller than panel length dimensions. Experimental data for the total loss in impactor kinetic energy and momentum and estimated damage energy are described. For a selection of impactor tip shapes, the numerical model is used to evaluate different simplified force histories between the impactor and the panel during penetration. The force histories are selected from a primary criterion of conservation of linear momentum in the impactor-panel system, and evaluated according to agreement with the total measured energy balance.

    AB - A sandwich panel is described by an axisymmetric lumped mass- spring model. The panel compliance is simplified, considering only core shear deformation uniformly distributed across the core thickness. Transverse penetrating impact is modeled for impactors of diameters comparable to the panel thickness but significantly smaller than panel length dimensions. Experimental data for the total loss in impactor kinetic energy and momentum and estimated damage energy are described. For a selection of impactor tip shapes, the numerical model is used to evaluate different simplified force histories between the impactor and the panel during penetration. The force histories are selected from a primary criterion of conservation of linear momentum in the impactor-panel system, and evaluated according to agreement with the total measured energy balance.

    M3 - Journal article

    VL - 9

    SP - 553

    EP - 570

    JO - Journal of Sandwich Structures & Materials

    JF - Journal of Sandwich Structures & Materials

    SN - 1099-6362

    IS - 6

    ER -