Analysis on shock attenuation in gap test configuration for characterizing energetic materials
- Agency for Defense Development, Daejeon 305-600 (Korea, Republic of)
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.
- OSTI ID:
- 22594609
- Journal Information:
- Journal of Applied Physics, Vol. 119, Issue 14; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0021-8979
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
GENERAL PHYSICS
75 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