| Autor: |
Sandusky, H. W., Felts, J. E., Granholm, R. H. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 12/28/2009, Vol. 1195 Issue 1, p237-240, 4p |
| Abstrakt: |
Shock reactivity and sensitivity in PBXN-109 with two types of Class 1 RDX from Dyno Nobel, one with reduced sensitivity (RS) and the other a Type II, were studied in various gap tests. These included the large scale gap test (LSGT), the expanded large scale gap test (ELSGT), and a version of the ELSGT referred to as the IMAD gap test in which the acceptor is shortened to 102 mm and the witness plate is replaced with a block. Dent depth measurements in the IMAD gap test were related to reaction failure, low-velocity detonation, and shock-to-detonation transition in the ELSGT. Sensitivity differences between the fills with RS-RDX and Type II RDX persisted in the smaller LSGT and in a much smaller test with just 7.2-mm diameter samples from the same mixes, as described in another paper at this meeting. Also, the two fills had different shock reaction mechanisms. It is postulated that a small portion of the RS-RDX reacts at nearly the same threshold for shock reaction as the Type II RDX, but twice that shock pressure is required for reaction of remaining RS-RDX. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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