Combustible Cartridge Case Ballistic Characterization
Final rept. Mar 1987-Jan 1989
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
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The combustible cartridge case is widely used in modern ammunition systems. Its mechanical strength allows it to replace metallic packaging in the handling, storage, and loading phases, while its combustible nature eliminates the logistical burden of disposing of unconsumed packaging after firing. Despite its wide use, the effect of the combustible cartridge case on final performance is not understood well enough to be modeled in a phenomenologically reasonable manner in modern interior ballistic codes. Current codes use three methods to represent the function of the combustible case. One method uses a tabular input the others model the case as a propellant or as a surface function using case thermochemistry and burning rates as inputs. These procedures may induce errors because of uncertainties in the burning characteristics of the case material. Keywords Interior ballistics Combustible cartridge case Burning rate Closed bomb 120-mm Tank gun.
- Ammunition and Explosives