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Untitled - Sciencemadness Dot Org

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DETONATION PROPERTIES<br />

Explosive<br />

Table 3.38 PBX 9402 (HMX/NC/CEF) ON DURAL<br />

HMX/NC/CEF: 94/3/3.1.831 f 0.011 g/cm3. Three 64-mm-thick conical frusta of<br />

279-mm small diameter and 324-mm large diameter with small ends toward plate.<br />

P-080 booster. D = 8.732 km/s - O.O37/diam (cm), at p. = 1.822 g/cm3 and increases<br />

approximately 0.003 km/s per O.OOl-g/cm3 increase.<br />

Plates<br />

Dural.<br />

Analysis<br />

Shot<br />

No.<br />

Plate<br />

Density<br />

k/cm”)<br />

Plate<br />

Thickness<br />

(mm)<br />

Free-Surface<br />

Velocity<br />

(km/s)*<br />

7C 124 2.782 6.36 3.717 f 0.013<br />

7c 75 2.771 12.75 3.653 f 0.021<br />

7c79 2.790 19.10 3.620 zt 0.009<br />

7c 149 2.805 25.45 3.534 f 0.022<br />

7C 76 2.782 26.21 3.503 zt 0.042<br />

7c 90 2.786 38.20 3.475 f 0.038<br />

7C 86 2.783 51.37 3.308 * 0.005<br />

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

and three determinations on the second one listed.<br />

Linear least squares fitting gives Ur, = 3.767 km/s - 0.00870 t(mm). At t = 0,<br />

plate U, = 7.858 km/s and P, = 40.73 GPa. Acoustic approximation with D = 8.773<br />

km/s, pox = 1.836 g/cm3, and porn = 2.786 g/cm3 gives corresponding explosive<br />

parameters of P, = 35.35 GPa, U,, = 2.195 km/s, and y = 2.997.<br />

272

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