Limits in the Charge Diameter-Porosity Plane

Fra I Detonability limits in the charge diameter-porosity plane, Group 1. Example shown is TNT (grain site 0.07 to 0.2 mm) data (Ref i) 

Fig 3 Pattern of detonation velocity vs porosity curves at various charge diameterB, Group 1. Example shown is HBX-1 (RDX/TNT/Al/Wax, 40/38/17/5) data 

Dr Price also examined relations between (A) and deton velocity (D). They are presented in Fig 3 for group 1 and in Fig 4 for group 2 Fig 3 shows a representative of group 1, an unconfined cylindrical charge of HBX-1 (RDX/TNT/A1/Wax - 40/38/17/5). Its voidless density is 1.76 g/cc. The curves are for charge diameters d, d, d d which are 6.4, 12.7, 25.4 50.8 mm, respectively. Solid lines are smoothed values from the experimental data which have been extrapolated to A=0.6. The limit line for failure was estimated, as shown on p 694 of Ref 17. A pattern of the same type was previously obtd by Stesik Akimova (Ref 3) for TNT 

Fig 4 shows an unconfined cylindrical charge of Ammonium Perchlorate, which represents group 2. Its particle size is 10 microns and the charge diameters examined dj, 

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