HEADSPACE EFFECT ON ALUMINUM CARTRIDGES CASE BEHAVIOR

摘要

Aluminum cartridge case has long been considered as the alternative material for brasscartridge. It can efficiently reduce the weight carried by soldiers, help soldiers carry moreammunition with the same cartridge case, and thus improve the combat effectiveness.However, Aluminum cartridge case can be broken off during the course of use, which is acommon phenomenon. By using the finite-element method, the paper is intended to analyzethe effects on the deformation of cartridge case, the position and magnitude of maximumstrain with the headspace variation law ;the maximum headspace of aluminum cartridge; thesimulation result that maximum headspace indeed causes break is also verified by the firingexperiment.