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Science and Technology of Energetic Materials

Vol.77, No.5 (2016)

Research paper

Investigation on the attenuation effect of the high-explosive ground surface detonation
Masahide Katayama, Atsushi Abe, Atsushi Takeba, Shiro Kubota, Tomoharu Matsumura, Kunihiko Wakabayashi, and Yoshio Nakayama
p.117-121

Abstract

After reviewing the characteristics of 3-dimensional (3-D) FCT (Flux Corrected Transport) Euler scheme from the viewpoints of both strengths and limitations, this paper certifies that the present method enables us effectively to simulate the distance attenuation effect of the peak overpressure and the impulse after the high-explosive (HE) detonation on the ground surface up to around the scaled distance of 20 m·kg-1/3 by comparing several experimental results including domestic and foreign data. Especially, the present methodology is applicable to considerable large-scale problems even by using current ordinary personal computers, and it also suggests the feasibility of complicated 3-D fluidstructure interaction analyses in the very near future.

Keywords

attenuation effect, flux corrected transport, ground surface detonation, scaled distance, TNT

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