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Stress wave effects on the dynamic axial buckling of cylindrical shells under impact
Dynamic axisymmetric buckling of cylindrical shells, loaded dynamically by a Kolsky bar, is studied in order to analyze the influence of stress wave propagation on the initiation of buckling. The considered specimens are made of an aluminum alloy which has linear strain hardening and displays the Bauschinger effect. The acceleration wave speeds are obtained assuming the Tresca yield criterion. The deformation process is analyzed by a numerical simulation using a discrete model for the shell and the theoretical predictions are compared with some published experimental data. It is shown that the different modes of failure depend on the impact velocity, and the pattern of buckling is a result of the stress wave propagation phenomenon, but the final shape depends on the inertia properties of the shell.
Stress wave effects on the dynamic axial buckling of cylindrical shells under impact
Dynamic axisymmetric buckling of cylindrical shells, loaded dynamically by a Kolsky bar, is studied in order to analyze the influence of stress wave propagation on the initiation of buckling. The considered specimens are made of an aluminum alloy which has linear strain hardening and displays the Bauschinger effect. The acceleration wave speeds are obtained assuming the Tresca yield criterion. The deformation process is analyzed by a numerical simulation using a discrete model for the shell and the theoretical predictions are compared with some published experimental data. It is shown that the different modes of failure depend on the impact velocity, and the pattern of buckling is a result of the stress wave propagation phenomenon, but the final shape depends on the inertia properties of the shell.
Stress wave effects on the dynamic axial buckling of cylindrical shells under impact
Karagiozova, D. (author) / Jones, N. (author)
1998
10 Seiten, 10 Quellen
Conference paper
English
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