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DETONATION PROPERTIES
Explosive
Table 3.44 TNT PRESSED ON DURAL
Granular 400-Frn particle-size TNT pressed to a density of 1.635 f 0.006 g/cm3.
Conical 203-mm-thick frusta of 213-mm minimum and 235mm maximum
diameter. Small end toward plate. D = 2.799 p0 + 2.360.
Plates
Dural.
Analysis
Shot
No.
--
a
a
8
a
a
a
a
a
B
a
a
a
a
a
a
a
8A 351
8A 849
8A 850
8A 703
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Plate Plate No.
Density Thickness Uf,
(g/cm*) (mm) Dets
2.793
2.793
2.793
2.793
2.791
2.793
2.791
2.793
2.790
2.793
2.790
2.793
2.790
2.792
2.793
2.793
2.788
2.784
2.784
2,784
Free-Surface
Velocity
(km/sjb
1.79 3 2.470 41 0.025
2.43 3 2.452 k 0.015
3.06 3 2.417 zk 0.004
3.70 3 2.409 f 0.010
4.79 6 2.397 f 0.026
5.05 1 2.362
6.25 7 2.346 h 0.011
7.51 3 2.336 f 0.027
8.04 4 2.363 3~ 0.019
8.78 3 2.325 f 0.020
9.63 4 2.312 zt 0.016
10.05 3 2.322 f 0.026
11.08 2 2.340 f 0.025
11.29 5 2.323 f 0.010
11.98 2 2.309 f 0.001
12.52 2 2.322 f 0.004
24.87 6 2.288 zk 0.012
38.1 4 2.193 It 0.005
50.8 3 2.144 f 0.003
50.92 5 2.165 f 0.021
“Data for this entry were determined on some or all of the following shots:
M-251, -255, -311, -312, and -313; each was fired using multiple plate thicknesses.
Linear least squares fitting to the data on 6-mm plate thickness gives Urs = 2.510
km/s - 0.02535 t (mm). At t = 0, plate U, = 7.033 km/s and P, = 24.49 GPa.
Acoustic approximation with D = 6.948 km/s, pox = 1.639 g/cm3, and porn = 2.792
g/cm3 gives corresponding explosive pressure of P, = 19.35 GPa. Linear least
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