Trends in shock initiation of heterogeneous explosives
Various data from the literature on shock initiation were examined to ascertain the relative importance of effects of porosity, particle size, and binder composition upon explosives initiation behavior. Both pure and composite explosives were examined. It was found that the main influence of porosity is manifested through changes in Hugoniot relations. The threshold for initiation was found to be insensitive to porosity, except at very low porosities. The buildup process was found to be weakly dependent upon porosity. Particle size effects were found to depend sensitively upon the nature of the particulates. For inert particles embedded in a reactive continuum, initiation is strongly specific surface area dependent. For HMX particles embedded in inert or reactive continua, particle effects are subtle. Sparse data indicate that binder composition has a small but significant effect upon threshold velocities.
- Research Organization:
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 329489
- Report Number(s):
- LA-UR-98-3026; CONF-980803-; ON: DE99001837; TRN: AHC29912%%6
- Resource Relation:
- Conference: 11. detonation symposium, Snowmass, CO (United States), 31 Aug - 4 Sep 1998; Other Information: PBD: [1998]
- Country of Publication:
- United States
- Language:
- English
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