التفاصيل البيبلوغرافية
| العنوان: |
Analysis on shock attenuation in gap test configuration for characterizing energetic materials. |
| المؤلفون: |
Bohoon Kim, Park, Jungsu, Yoh, Jack J. |
| المصدر: |
Journal of Applied Physics; 2016, Vol. 119 Issue 14, p145902-1-145902-9, 9p, 2 Diagrams, 5 Charts, 7 Graphs |
| مصطلحات موضوعية: |
ATTENUATION (Physics), SHOCK waves, DETONATION waves, PENTOLITE, REACTIVE flow, ACOUSTIC impedance |
| مستخلص: |
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. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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