Influence of temperature and strain rate on the mechanical behavior of PBX 9502 and Kel-F 800â„¢

Blumenthal, W. R.; Gray, G. T.; Idar, D. J.; Holmes, M. D.; Scott, P. D.; Cady, C. M.; Cannon, D. D.
April 2000
AIP Conference Proceedings;2000, Vol. 505 Issue 1, p671
Academic Journal
Compression measurements were conducted on plastic-bonded explosive PBX 9502 and its binder, Kel-F 800[SUP™], as a function of temperature from -55°C to +55°C using an improved split Hopkinson pressure bar at high strain rates (≈ 1400 s[SUP-1] ) and at low strain rates (≈ 0.001 to 0.1 s[SUP-1]) at ambient temperatures. PBX 9502 exhibits lower dynamic compressive strength, but is much less sensitive to strain rate and temperature, than PBX 9501. In contrast, the mechanical response of the Kel-F 800[SUP™] binder is stronger than pure (or plasticized) Estane[SUP™], but is again less strain rate and temperature dependent. The effects of longitudinal and transverse loading orientations (due to preferred orientation of TATB) and virgin versus recycled TATB on the properties of PBX 9502 are presented.


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