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Untitled - Sciencemadness Dot Org

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DETONATION PROPERTIES<br />

Explosive<br />

Table 3.34 OCTOL ON DURAL<br />

HMX/TNT: 76.3 f 0.8 wt% HMX. 1.809 f 0.007 g/cmS. 155-mm-thick conical<br />

frustum of 279-mm small diameter and 324-mm large diameter with large end<br />

toward plate. P-080 and 32-mm-thick Plexiglas booster. D = 8.478 km/s at p0 =<br />

1.814 g/cm3 and 77 wt% HMX. D increases -0.8031 km/s per O.OOl-g/cm3 density<br />

increase and -0.013 km/s per 1 wt% HMX increase.<br />

Plates<br />

Dural.<br />

Analysis<br />

Shot<br />

No.<br />

Plate<br />

Density<br />

(g/cm*)<br />

Plate<br />

Thickness<br />

(mm)<br />

Free-Surface<br />

Velocity<br />

(km/s)”<br />

8A 1322 2.774 2.54 3.674 f 0.035<br />

7c 151 2.782 6.31 3.644 f 0.064<br />

8A 1337 2.774 6.37 3.698 f 0.039<br />

7c 117 2.784 12.88 3.476 f 0.048<br />

8A 1177 2.790 19.15 3.438 f 0.025<br />

8A 1178 2.782 25.51 3.348 f 0.021<br />

8A 1189 2.786 38.13 3.232 f 0.008<br />

8A 1180 2.783 50.88 3.113 f 0.012<br />

7c 166 2.783 76.76 2.859 f 0.010<br />

“Mean and standard deviation of seven determinations on the first<br />

three shots listed, five determinations on the next five, and three<br />

determinations on the last.<br />

Linear least squares fitting gives U, = 3.695 km/s - 0.01160 t (mm). At t = 0,<br />

plate U, = 7.811 km/s, and P, = 39.72 GPa. Acoustic approximation with D =<br />

8.452 km/s, pox = 1.809 g/cm3, and porn = 2.781 g/cm3 gives corresponding explosive<br />

parameters of P, = 33.84 GPa, U,, = 2.213 km/s, and y = 2.819.<br />

268

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