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Study on the Method of Terminal Trajectory to External Ballistics to Terminal Trajectory of Bullet Penetrating Glass

JIN-MING LI, YONG-JIE QU, HAI-TAO LU, WEN-MIN YAN, SHU WANG

Abstract


The practical application of bullet penetrating glass is a process of “terminal trajectory to external ballistics to terminal trajectory” essentially. Based on the overall design of the bullet penetrating glass, the numerical simulation of the bullet penetrating glass, the aerodynamic characteristic analysis, the numerical simulating of the transfiguration bullet penetrating the gelatin are carried out, and the feasibility and rationality of the method are compared with the test in each process. This study found within the speed range the impact of penetration speed on mass loss and length loss was basically the same, 5mm glass has little influence on the stable flight, resistance, the rules of roll change and lethality effect in the gelatin of the bullet can be further analyzed. The movement state of a bullet in the whole process of terminal trajectory to external ballistics to terminal trajectory is analyzed to reveal the motion law of the bullet in this process which can provide technical support for the research and development of high precision ammunition.

Keywords


deformation bullet; penetration; aerodynamic characteristic; after effect lethalityText


DOI
10.12783/ballistics2019/33155

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