Shock initiation sensitivity of hexanitrostilbene (HNS)
Experiments were conducted to study the influence of powder morphology, sample density, diameter of the impacting flyer and duration of the stimulus on the shock initiation sensitivity of the high explosive, hexanitrostilbene. The shock stimulus was provided by a polyimide flyer accelerated by an electrically-exploded, metallic foil. Impact pressure (P) was controlled between 3.8 and 9.8 GPa and pulse duration (tau) was nominally 0.035 ..mu..s except for the last experiment where pulse duration varied. Powder morphology significantly influenced the shock amplitude required for initiation with the finest-particle HNS requiring the least pressure, 6.3 GPa, and exhibiting the sharpest threshold. Both a reduction in density of HNS, from 1.60 to 1.30 Mg/m/sup 3/, and an increase in flyer diameter affected a reduction in impact velocity (or pressure) needed to induce detonation. The line which separates detontion from non-detonation is expressed by P/sup 2/ /sup 4/ tau = constant for tau between 0.01 and 0.10 ..mu..s; for longer pulses the initiation criterion becomes one of constant pressure.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6773456
- Report Number(s):
- SAND-81-0016C; CONF-810602-4
- Country of Publication:
- United States
- Language:
- English
Similar Records
New technique for determining the shock initiation sensitivity of explosives
Shock sensitivity of the explosive 2-(5-Cyanotetrazolato) Pentaamine Cobalt(III) Perchlorate (CP)
Related Subjects
450100* -- Military Technology
Weaponry
& National Defense-- Chemical Explosions & Explosives
CHEMICAL EXPLOSIVES
DATA
DETONATIONS
EXPERIMENTAL DATA
EXPLOSIVES
IMPACT SHOCK
INFORMATION
NUMERICAL DATA
PERFORMANCE
PERFORMANCE TESTING
TESTING