The Containment of Disk Burst Fragments by Cylindrical Shells

[+] Author and Article Information
A. C. Hagg

Mechanics Dept., Westinghouse Research Laboratories, Pittsburgh, Pa.

G. O. Sankey

Westinghouse Research Laboratories, Pittsburgh, Pa.

J. Eng. Power 96(2), 114-123 (Apr 01, 1974) (10 pages) doi:10.1115/1.3445758 History: Received August 01, 1973; Online July 14, 2010


Tests and analysis show that containment of missile-like steel disk fragments by a steel cylindrical shell is a sequential two-stage process. Stage 1 involves inelastic impact and transfer of momentum to include an effective target mass. For nonperforation, the energy dissipated in plastic compression and shear strain at the local impact area must be sufficient to accommodate the loss in kinetic energy of the system. With nonperforation, the process enters stage 2, which involves dissipation of energy in plastic tension strain over extended volumes of shell material. For containment, the energy dissipated in plastic strain in stage 2 must accommodate the residual kinetic energy of the system. Criteria for nonperforation and containment are given which are in satisfactory agreement with test results.

Copyright © 1974 by ASME
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