HUGONIOT CURVES OF PROPELLANTS.
ROHM AND HAAS CO HUNTSVILLE ALA REDSTONE RESEARCH LABS
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A microwave interferometry technique is used to determine shock velocities on both sides of a sample - Rohm and Haas Plexiglas trade name interface. Particle velocities in the Plexiglas are determined from the known Hugoniot for Plexiglas. These particle velocities with the measured shock velocities are used in the impedance-mismatch equation to give the particle velocities in the sample. The shock pressure and specific-volume ratios in the sample are calculated for each shock velocity giving the Hugoniot parameters of the sample. Measurements were made on a propellant formulation, the same formulation with the oxidizer replaced by potassium chloride, and Owens-Cornings Fiberglas trade name. In the inert propellant it was found that the continuous phase binder has the largest influence on the pressure-specific-volume-ratio relation. The active propellant gave results considerably different from the inert propellant at pressures above 20 kbars, indicating that reaction of the oxidizer contributes energy to the shock front in a non-detonating system. Author
- Ammunition and Explosives