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    Testing and analysis of elastic-plastic pinned beams under impulsive loading

    New search for: Boutros, M.
    New search for: Keys, M.

    An analytical model for the analysis of beams with pinned ends is presented. The deflection shape accounts for the stretching (membrane) force. The elastic-plastic beam is analyzed under impulsive loading using the equation of motion derived by the virtual work principle. Elastic and plastic strain rate effects are considered as viscous damping. An apparatus to test beam specimens subjected to impulsive loading is presented. It comprises a moving carriage tended by springs. Mild steel specimens 400 mm long and 10 to 20 mm thick softened by annealing were tested. The comparisons of the analytical and experimental results show a good agreement. This model is also compared with the results of rigid-segment models. The comparisons show that it is important to consider elastic deformations in the analysis especially in cases of low levels of impulse producing permanent midspan deflections less than the thickness of the specimens.

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    Testing and analysis of elastic-plastic pinned beams under impulsive loading

    New search for: Boutros, M.
    New search for: Keys, M.

    An analytical model for the analysis of beams with pinned ends is presented. The deflection shape accounts for the stretching (membrane) force. The elastic-plastic beam is analyzed under impulsive loading using the equation of motion derived by the virtual work principle. Elastic and plastic strain rate effects are considered as viscous damping. An apparatus to test beam specimens subjected to impulsive loading is presented. It comprises a moving carriage tended by springs. Mild steel specimens 400 mm long and 10 to 20 mm thick softened by annealing were tested. The comparisons of the analytical and experimental results show a good agreement. This model is also compared with the results of rigid-segment models. The comparisons show that it is important to consider elastic deformations in the analysis especially in cases of low levels of impulse producing permanent midspan deflections less than the thickness of the specimens.

    Access

    Access via TIB
    Check availability in my library

    Testing and analysis of elastic-plastic pinned beams under impulsive loading

    New search for: Boutros, M.
    New search for: Keys, M.

    An analytical model for the analysis of beams with pinned ends is presented. The deflection shape accounts for the stretching (membrane) force. The elastic-plastic beam is analyzed under impulsive loading using the equation of motion derived by the virtual work principle. Elastic and plastic strain rate effects are considered as viscous damping. An apparatus to test beam specimens subjected to impulsive loading is presented. It comprises a moving carriage tended by springs. Mild steel specimens 400 mm long and 10 to 20 mm thick softened by annealing were tested. The comparisons of the analytical and experimental results show a good agreement. This model is also compared with the results of rigid-segment models. The comparisons show that it is important to consider elastic deformations in the analysis especially in cases of low levels of impulse producing permanent midspan deflections less than the thickness of the specimens.

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    Title:

    Testing and analysis of elastic-plastic pinned beams under impulsive loading

    Contributors:

    Boutros, M. (author) / Keys, M. (author)

    Published in:

    SUSI, International Conference on Structures Under Shock and Impact, 5 ; 191-199

    International Conference on Structures Under Shock and Impact, SUSI

    Publication date:

    1998

    Size:

    9 Seiten, 8 Quellen

    Type of media:

    Conference paper

    Type of material:

    Print

    Language:

    English

    Keywords:

    mathematisches Modell , Verformbarkeit , Bewegungsgleichung , Dehnungsgeschwindigkeit , Dämpfung , Kohlenstoffstahl , Stoßbelastung , eingespannter Träger

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