Dynamic elastic-plastic buckling of circular cylindrical shells under axial impact

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Dynamic elastic-plastic buckling of circular cylindrical shells under axial impact

Author: D. Karagiozova, Norman Jones | Size: 595 KB | Format: PDF | Quality: Unspecified | Publisher: Elsevier | Year: 1998 | pages: 30

Dynamic axisymmetric buckling of circular cylindrical shells struck axially by a mass is studied in order to clarify
the initiation of buckling and to provide some insight into the buckling mechanism as a transient process. It is
assumed that the material is elastic±plastic with linear strain hardening and displaying the Bauschinger e€ect. The
deformation process is analysed by a numerical simulation using a discrete model. Particular attention is paid to the
in¯uence of stress wave propagation on the initiation of buckling. It is found that the development of the buckling
shape depends strongly on the inertia properties of the striker and on the geometry of the shell. The theoretical
method is used to clarify some experimental data and good agreement is obtained with results on aluminium alloy
tubes.

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