Abstract.
Experimental studies were carried out to investigate projectile acceleration in a single-stage gun at breech pressures below 50 MPa. The gun was driven by firing either liquid or solid propellant. In-bore projectile velocity was continuously recorded using the well-known, precise VISAR interferometer technique so that accurate projectile acceleration data could be deduced. Both the attained projectile acceleration and muzzle exit velocity depend upon the charge-to-mass ratio and the pressure at which the blow-out disk ruptures. The results obtained from these experiments render information on the interplay between propellant combustion and projectile acceleration for low in-bore pressure regimes, and they provide the input data required for adequate numerical simulation.
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Sasoh, A., Ohba, S. & Takayama, K. Projectile acceleration in a single-stage gun at breech pressures below 50 MPa. Shock Waves 10, 235–240 (2000). https://doi.org/10.1007/s001930000052
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DOI: https://doi.org/10.1007/s001930000052