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SHOCK INITIATION PROPERTIES
Table 4.45 SPIS-44 CLASS II PROPELLANT
Composition
49 wt% AP, 20 wt% HMX, 21 wt% Al, 7.27 wt% R45M, 2 wt% INDOPOL, 0.51
wt% IPDI, 0.15 wt% Tepanol, 0.07 wt% CAO-14
Theoretical Maximum Density
1.831 g/cm3
Particle Size Distribution
g-pm HMX, 200+m AP (28%), 6-pm AP (21%), 6-pm Al
Preparation Method
Casting, curing, and machining to shape
Data, Summary
p,, = 1.830 g/cm3. T, = 24’C. Technique 7
Shot
Number
Coordinates for
High-Order
Initial Shock Parameters Detonation
(G?a)
UP0
X*
hm/ps) (rn>ks)
-
(mm)
- t:*s,
E-4527 3.63 0.536 3.70 a --_
E-4554 7.05 0.864 4.46 a --_
E-4563 22.3 1.92 6.36 B --_
E-4561 25.7 2.11 6.65 a --_
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Driving
System Thickness
(mm)
C, 24.1 SS, 18.3 Plex
L, 24.1 SS, 10.9 Plex
L, 17.8 Plex
S, 10.9 Plex
“No transition to detonation was observed within 25.4 mm, but a violent reaction trailed the shock wave
at a time that depended on the shock pressure.
Reduced Data
U,, = (2.774 f 0.093) + (1.855 f O.O62)U,,.
416