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Untitled - Sciencemadness Dot Org

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Explosive<br />

Table 3.43 RDX AND KEL-F ON DURAL<br />

DETONATION PROPtiRTIES<br />

RDX/Kel-F 150: 85/15. 1.809 f 0.004 g/ems. Two 76-mm-thick, 150-mm-diam<br />

pieces to make a 152-mm thickness. P-080 booster. D = 8.280 km/s at p,, = 1.807<br />

g/cm3.<br />

Plates<br />

Dural.<br />

Analysis<br />

Shot<br />

No.<br />

Plate Plate<br />

Density Thickness<br />

k/cm? (mm)<br />

a 2.790 5.08<br />

a 2.790 6.35<br />

a 2.790 7.62<br />

a 2.790 8.89<br />

a 2.790 10.16<br />

B 2.790 12.70<br />

8A 404 2.790 13.16<br />

8A 403 2.790 25.40<br />

Free-Surface<br />

Velocity<br />

(km/sJb<br />

3.683 f 0.020<br />

3.639 A 0.017<br />

3.616 zk 0.032<br />

3.623 31 0.008<br />

3.567 f 0.018<br />

3.517 f 0.035<br />

3.505 f 0.026<br />

3.388 f 0.014<br />

“Data for this entry were determined on some or all of the following<br />

shots: “8A-347, -348, -349, -384, -387, -411, and -412; each was fired<br />

fired using multiple plate thicknesses.<br />

bMean and standard deviation of seven determinations each on the<br />

second and sixth entry, six each on the third and fifth, five each on<br />

the first and seventh, four on the last, and two on the fourth.<br />

Linear least squares fitting gives Ur, = 3.725 km/s - 0.01449 t (mm). At t = 0,<br />

plate U, = 7.831 km/s and P, = 40.21 GPa. Acoustic approximation with D = 8.287<br />

km/s, pox = 1.809 g/cm’, and porn = 2.790 g/cm3 gives corresponding explosive<br />

parameters Iof P, = 33.71 GPa, U,, = 2.248 km/s, and y = 2.686.<br />

277

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