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DETONATION PROPERTIES
Analysis
Linear least squares fitting gives Up, = 3.389 km/s - 0.01079 t (mm). At t = 0,
plate U, = 7.611 km/s and P, = 35.63 GPa.
Acoustic approximation with D = 8.030 km/s, pox = 1.713 g/cm3, and porn = 2.791
g/cm” gives corresponding explosive parameters of P, = 29.35 GPa, U,, = 2.134
km/s, and y = 2.763.
Explosive
Table 3.28 COMPOSITION B ON DURAL
Charge Length/Diameter = 1
RDX/TNT: 65.5 f 1.5 wt% RDX. Holston Grade A Composition B. 1.713 f 0.007
g/cm3. Two 76-mm-thick, 152-mm-diam cylinders to make a 152-mm- length. P-080
booster, D = 3.127 p. + 2.673 at 65 wt% RDX and increases 0.0134 km/s per 1 wt%
RDX increase.
Plates
Dural.
Analysis
Shot
No.
Plate Plate
Density Thickness
Wcm3) (mm)
Free-Surface
Velocity
(km/s)”
7C 180 2.774 6.38 3.359 rt 0.027
8A 1314 2.782 12.73 3.259 f 0.008
8A 1313 2.774 19.07 3.189 f 0.023
8A 1334 2.782 25.74 3.058 zk 0:016
8A 1319 2.774 38.11 2.933 f 0.014
8A 1315 2.805 50.86 2.800 f 0.034
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“Mean and standard deviation of seven determinations on each
shot.
Linear least squares fitting gives Uf, = 3.421 km/s - 0.01259 t (mm). This inter-
cept is only 0.9% higher than that of the data in Table 3.27 for somewhat larger
charges. The slope is steeper. The intercept is 1.6% higher than that in Table 3.29
for charges of the same diameter but ten charge diameters long. The slope is again
steeper than found from the data in Table 3.27.
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