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Author Kim, Bohoon ♦ Yoh, Jack J. ♦ Park, Jungsu
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS ♦ CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ ATTENUATION ♦ CAPTURE ♦ CHEMICAL EXPLOSIVES ♦ COMPUTERIZED SIMULATION ♦ CONFIGURATION ♦ EXPLOSIONS ♦ FLOW MODELS ♦ HYBRIDIZATION ♦ IMPEDANCE ♦ NUMERICAL ANALYSIS ♦ SENSITIVITY ♦ SHOCK WAVES ♦ STRAIN RATE ♦ THICKNESS
Abstract A pyrotechnic system consisting of donor/acceptor pair separated by a gap relies on shock attenuation characteristics of the gap material and shock sensitivity of the donor and the acceptor charges. Despite of its common use, a numerical study of such a pyrotechnic train configuration is seldom reported because proper modeling of the full process requires precise capturing of the shock wave attenuation in the gap prior to triggering a full detonation of a high explosive and accurate description of the high strain rate dynamics of the explosively loaded inert confinements. We apply a hybrid particle level-set based multimaterial hydrocode with reactive flow models for pentolite donor and heavily aluminized cyclotrimethylene-trinitramine as the acceptor charge. The complex shock interaction, a critical gap thickness, an acoustic impedance, and go/no-go characteristics of the pyrotechnic system are quantitatively investigated.
ISSN 00218979
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-04-14
Publisher Place United States
Journal Journal of Applied Physics
Volume Number 119
Issue Number 14


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