Research on Calibration Method of Ballistic Gelatin Based on Motion Characteristics of Spherical Projectile

doi:10.3969/j.issn.1000-1093.2016.06.021

Abstract

Abstract: In order to explore the method of using a gelatin target to assess projectile lethality, the mechanical properties of ballistic gelatin are analyzed, and the movement rule of spherical projectile in gelatin is studied based on the experimental research and the transient dynamic analysis software. The results show that the mechanical properties of ballistic gelatin should be calibrated before experiment; a cavity phenomenon may arise when the spherical projectile moves in the ballistic gelatin at a high speed, the max diameter of cavity increases with the rising of penetration depth, and the resistance and speed of projectile are reduced exponentially; and the gelatin target can be simplified as a fluid model when the projectile penetrate it at a high speed (300～1 000 m/s). The mathematical relationship between velocity and displacement is established through example analysis and calculation, and a ballistic gelatin calibration method is proposed.

Key words: ordnance science and technology, spherical projectile, penetration , gelatin, movement rule, numerical simulation

CLC Number:

TJ012.4

LIU Fei, SHAN Yong-hai, ZHANG Jun-bin, GONG Xiao-ze. Research on Calibration Method of Ballistic Gelatin Based on Motion Characteristics of Spherical Projectile[J]. Acta Armamentarii, 2016, 37(6): 1117-1124.

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