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- W2316171388 abstract "Numerical simulations of explosive fragmentation munitions presented in this work integrate three-dimensional axisymmetric hydrocode analyses with analytical fragmentation modeling. The developed analytical fragmentation model is based on the Mott’s theory of break-up of cylindrical “ring-bombs” (Mott, 1947), in which the average length of fragments is a function of the radius and velocity of the ring at the moment of break-up, and the mechanical properties of the metal. The fundamental assumption of the model is that the fragmentation occurs instantly throughout the entire body of the shell. Adopting Mott’s critical fracture strain concept (Mott, 1947), the moment of the shell break-up is identified in terms of the high explosive detonation products volume expansions, V/V0. The assumed fragmentation time determined from the high-speed photographic data of Pearson (1990) had been approximately three volume expansions, the fragmentation being defined as the instant at which the detonation products first appear as they emanate from the fractures in the shell. The newly developed computational technique is applied to both the natural and preformed explosive fragmentation munitions problems. Considering relative simplicity of the model, the accuracy of the prediction of fragment spray experimental data is rather remarkable." @default.
- W2316171388 created "2016-06-24" @default.
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- W2316171388 date "2002-01-01" @default.
- W2316171388 modified "2023-09-26" @default.
- W2316171388 title "Numerical Modeling of Fragmentation Characteristics of Explosive Fragmentation Munitions" @default.
- W2316171388 doi "https://doi.org/10.1115/pvp2002-1150" @default.
- W2316171388 hasPublicationYear "2002" @default.
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