弹丸被甲材料对弹丸挤进的影响分析
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摘要
为研究弹丸被甲材料对挤进过程的影响,以某小口径步枪弹为对象进行研究。分析弹丸材料的特性,分别以H90铜被甲弹和覆铜钢被甲弹为例进行挤进试验,得到不同弹药对应的挤进力变化;通过有限元仿真模型,结合试验结果推导挤进过程数学模型,并对其正确性进行验证。验证结果表明,挤进数值分析结果与仿真结果与实验数据吻合。从分析计算结果来看,被甲材料的不同导致挤进过程也有较大差异。
Research on certain type small caliber rifle for studying the effect of projectiles on the extrusion process. The extrusion test of H90 copper beaded and copper-clad steel was taken as an example to analyze the properties of projectile materials, and get the extrusion force change corresponding of different ammunition. Using the finite element simulation model, combined with the test results, the mathematical model of the extrusion process is derived and its correctness is verified. The verification results show that the numerical analysis results and the simulation results agree with the experimental data. Judging from the results of the analysis and calculation, the difference in the material of the bullet shell causes a large difference in the extrusion process.
Research on certain type small caliber rifle for studying the effect of projectiles on the extrusion process. The extrusion test of H90 copper beaded and copper-clad steel was taken as an example to analyze the properties of projectile materials, and get the extrusion force change corresponding of different ammunition. Using the finite element simulation model, combined with the test results, the mathematical model of the extrusion process is derived and its correctness is verified. The verification results show that the numerical analysis results and the simulation results agree with the experimental data. Judging from the results of the analysis and calculation, the difference in the material of the bullet shell causes a large difference in the extrusion process.
引文
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[2]刘国庆,徐诚.弹药参数及误差对弹头膛内运动的影响研究[J].火炮发射与控制学报, 2017, 38(1):1-6.
[3]安俊斌,李强,李世康,等.某大口径枪械弹丸挤进坡膛过程的仿真分析[J].火炮发射与控制学报, 2017,38(1):1-6.
[4]陆野,周克栋,赫雷,等.坡膛结构参数对枪械内弹道挤进时期的影响研究[J].兵工学报, 2015, 36(7):1363-1369.
[5]陈龙淼,林贵,李淼.弹丸高速挤进过程动态试验设计与分析[J].南京理工大学学报, 2015, 39(2):139-143.
[6]樊黎霞,何湘玥.弹丸挤进过程的有限元模拟与分析[J].兵工学报, 2011, 32(8):963-969.
[7]袁永立,何国求,张玉刚,等.覆铜钢拉伸性能与显微结构分析[J].金属功能材料, 2012, 19(2):47-54.
[8]周彦煌,王升晨.两相流内弹道学[M].北京:兵器工业出版社, 1990:31-60.
[9]王鹏,杨国来,葛建立,等.基于Johnson-cook本构模型的弹带挤进过程数值模拟[J].弹道学报, 2015, 27(2):55-61.
[10]李磊,张先锋,吴雪,等.不同硬度30CrMnSiNi2A钢的动态本构与损伤参数[J].高压物理学报, 2017, 31(3):239-248.