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DETONATION PROPERTIES<br />

Explosive<br />

Table 3.36 PBX ,9207 (HMX/EXON/CEF) ON DURAL<br />

HMXiExon 461KEF: 921612. 1.837 f 0.002 g/cm’. Two 76-mm-thick, 156-mm-<br />

diam pieces to make a 152-mm thickness. P-080 booster. D = 8.677 km/s at 41-mm<br />

diam and p. = 1.843 g/cm3.<br />

Plates<br />

Dural.<br />

Analysis<br />

Shot<br />

No.<br />

Plate Plate<br />

Density Thickness<br />

k/cm*) (mm)<br />

Free-Surface<br />

Velocity<br />

(km/s)”<br />

8A 1449 2.784 5.13 3.599 zk 0.025<br />

7C231 2.788 6.17 3.728 f 0.030<br />

7C226 2.782 12.71 3.553 * 0.013<br />

7C227 2.782 19.08 3.499 f 0.016<br />

7C228 2.789 24.20 3.439 zt 0.025<br />

7c229 2.788 38.12 3.334 3~ 0.027<br />

7C244 2.789 50.83 3.215 f 0.013<br />

_--_----_<br />

“Mean and standard deviation of seven determinations on six shots<br />

and six determinations on the third one listed.<br />

Linear least squares fitting gives U, = 3.692 km/s - 0.00954 t (mm). At t = 0,<br />

plate U, = 7.809 km/s and P, = 39.68 GPa. Acoustic approximation with D = 8.665<br />

h-n/s, pox = 1.837 g/cm3,‘and porn = 2.786 g/cm3 gives corresponding parameters of P,<br />

= 34.35 GPa, U,, = 2.158 km/s, and y = 3.015.<br />

270

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