Study on the rheology of RX-08-FK LLNL's paste explosive
Technical Report
·
OSTI ID:5887162
Understanding the rheological properties of paste explosives (PEX) is vital to utilizing this technology in any application. We recently completed testing our current paste candidate, RX-08-FK. This PEX exhibited non-Newtonian flow properties, and could be analyzed via use of power law curves. Neglecting yield stress, the PEX data followed power law behavior, with the exponents (n) being in the region of 0.3 to 0.6 (expected region was 0.35 to 0.65). This classifies the PEX as having strongly pseudoplastic behavior (decreasing apparent viscosity with increasing shear rate). Using information extracted from this data, we were able to conclude that pressure transfer of this material from one configuration to another is a highly feasible concept. We estimate that to transfer 60 lb of our PEX through 4 feet of 1 inch ID tubing at 50/sup 0/F, we would need a driving pressure of only 500 psi to accomplish the extrusion in less than 20 seconds. 2 figs., 4 tabs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5887162
- Report Number(s):
- UCID-20737; ON: DE86010781
- Country of Publication:
- United States
- Language:
- English
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