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61. A STUDY OF THE SHOCK SENSITIVITY OF PBX 9501 DAMAGED BY COMPRESSIVE LOADING.

Author

Thompson, D. G., Gustavsen, R. L., Hooks, D. E., Peterson, P. D., DeLuca, R., Stahl, D. B., Hagelberg, S. I., and Alcon, R. R.

Subjects
*MECHANICAL shock, *CONDENSED matter, *SHOCK waves, *EXPLOSIVES, *DETONATION waves
Abstract

We have studied the effects of damage caused by compressive loading on the shock sensitivity of the plastic bonded explosive PBX 9501. PBX 9501 consists of 95 wt. % HMX and 5 wt. % nitroplasticized Estane binder. The binder is a mixture of 49 wt. % Estane® 5703 (BF Goodrich), 49 wt. % Nitroplasticizer (a eutectic mixture of bis(2,2-dinitropropyl)formal and bis(2,2 dinitropropyl)acetal), and 2 wt. % Irganox® 1010 stabilizer. PBX 9501 cubes, 25.4 mm on a side, were compressed to various uniaxial loads in an Instron machine. After loading, 10×10 mm cross-sections, 3.5 mm thick, were taken from the center of each cube. These slices were then subjected to nearly identical 35 kbar shocks. Transmitted shock wave profiles were measured using interface velocimetry (VISAR). Comparison of shock wave growth is a measure of shock sensitivity. Results on four samples indicate little change in sensitivity caused by compressive loading. [ABSTRACT FROM AUTHOR]

Published
2007
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