Nonmetallized solid propellant in high acceleration environments
Abstract
Nonmetallized double base propellant and ammonium perchlorate/
binder sandwich combustion were studied in standard and high acceleration
environments. Experimental techniques used were high speed
motion pictures, two-color schlieren and pressure -time trace determination
of burning rates. The double base propellant was studied at
pressures to 1250 psia and accelerations to + 1000 g's. Two binder
systems were used in the AP/binder sandwiches. Tests were conducted
with two binder thicknesses at 400 psia and with acceleration
levels of zero and 100 g's. It was found for double base propellant
that the temperature increased continuously from the surface to the
visible flame and that acceleration induced burning rate augmentation
occurred. Acceleration apparently modified the surface or subsurface
combustion zones. AP/binder sandwich combustion was found
to be acceleration sensitive with binder flow being the most plausible mechanism.
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