Nature of the buildup to detonation in solid high explosives during plane shock initiation. [PBX-9404 and PBX-9502] [electronic resource].
- Los Alamos, N.M. : Los Alamos Scientific Laboratory, 1980. and Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
- Physical Description:
- Pages: 24 : digital, PDF file
- Additional Creators:
- Los Alamos Scientific Laboratory and United States. Department of Energy. Office of Scientific and Technical Information
- Restrictions on Access:
- Free-to-read Unrestricted online access
- Two models for the initiation process are compared to results of experimental studies of initiation of detonation in two high explosives, PBX-9404 (HMX-based) and PBX-9502 (TATB-based), by sustained shock waves. A critical examination of the model known as single-curve buildup is made. Several comparisons are made with experimental results for the two explosives. The model describes the observed shock trajectories moderately well although it has some limitations. These are manifested by an examination of the relation between input pressure and distance of run to detonation. The data are also compared with model solutions for the initiation process which assume self-similar flow. The model can fit the experimental shock trajectory reasonably well but difficulties are encountered in attempting to complete the solution for the entire flow field. For PBX-9404, published pressure-time profiles are examined for self-similar character. The measured profiles show substantial disagreement with the similarity model.
- Published through SciTech Connect., 01/01/1980., "la-ur-80-329", " conf-800809-3", 18. combustion symposium, Waterloo, Canada, 17 Aug 1980., and Dick, J.J.
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