An Analysis of Motion of Projectile in Bore with the Change of Material Properties of Copper Armor due to High Temperature

doi:10.3969/j.issn.1000-1093.2018.06.005

Abstract

Abstract: A finite element model of projectile and barrel is established to study the motion of projectile in bore at high temperature, in which the pre-bending of barrel under gravity and the mechanical properties of copper armor at different temperatures are considered. The engraving process of projectile and its motion attitude in bore are studied through numerical simulation, and the engraving resistance, material flow and deformation of projectile at different temperatures are analyzed. The mechanical properties of barrel and copper armor were obtained through high temperature tensile tests, and the processes of projectile entering into the barrel at different temperatures are analyzed. The results show that the higher the temperature is, the greater the stress, strain, deformation and swing angle of projectile will be. Key

Key words: bullet, copperarmor, projectileengraving, projectiledeformation, motionstateofprojectile

CLC Number:

TJ410.4

YANG Yu-zhao, XU Cheng, FAN Li-xia. An Analysis of Motion of Projectile in Bore with the Change of Material Properties of Copper Armor due to High Temperature[J]. Acta Armamentarii, 2018, 39(6): 1074-1081.

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第39卷第6期
2018 年6月兵工学报ACTA
ARMAMENTARIIVol.39No.6Jun.2018

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