THE RESPONSE OF NITROGUANIDINE TO A STRONG SHOCK
NAVAL ORDNANCE LAB WHITE OAK MD
Pagination or Media Count:
In its range of detonability, nitroguanidine NQ behaves as a Group 1 explosive. In addition, it exhibits failure at the high TMD as well as the more common failure at a lower critical density. The high bulk density HBD form of NQ exhibits a critical diameter about three times that of the low bulk density form. This fact aided in studying the subcritical region of NQ HBD where a strong shock produces a subdetonation, supersonic, constant velocity front. This pseudo-detonation or LVD had failure characteristics similar to the detonability limits of Group 2 materials. That trend, the power of the LVD reactions, and the dimensions of the various gap tests can be combined to explain 1 a hump in the curve 50 pressure vs TMD obtained for NQHBD in the gap test and 2 a reversal in apparent shock sensitivity rating of NQHBD and NQLBD when tested on the large- and small-scale gap tests.
- Ammunition and Explosives