针对美国海军公布的电磁炮侵彻试验，采用有限元程序LSdyna建立高速弹丸侵彻模型，结合Johnson-cook本构方程及验证的材料参数，开展电磁炮弹丸高速侵彻45#钢靶的仿真研究。结果表明，电磁炮弹丸的长度及质量损失以“蘑菇头”的销蚀循环方式进行，终点特征受弹丸侵彻速度及靶板厚度因数影响较大。
In response to the electromagnetic gun penetration test announced by the US Navy, a high-speed projectile penetration model was established using the finite element program. Combined with Johnson-cook equation and verified material parameters, a simulation study on the electromagnetic gun projectile high speed penetration into 45# steel was carried out. The results show that the length and mass loss of the electromagnetic gun projectile is carried out in a mushroom head erosion cycle, and the end point characteristics are greatle affected by the initial velocity of the projectile and the thickness of the target plate.
2021,43(7): 182-186 收稿日期：2021-03-10
DOI：10.3404/j.issn.1672-7649.2021.07.037
分类号：TJ410
作者简介：焦登伟(1990-),男,助理工程师,主要从事结构设计及战斗部毁伤研究
参考文献：
[1] 刘凯. 电磁炮用集束脱壳穿甲弹技术研究[D]. 南京:南京理工大学, 2014.3.
LIU K. Technology study on cluster APDS in electromagnetic raingun[D]. Nanjing:Nanjing University of Science & Technology, 2014.3.
[2] 邱群先, 高博, 刘可可. 电磁轨道炮超高速弹丸侵彻靶板仿真研究[J]. 舰船科学技术, 2020, 42(1):181-185
QIU Q X, GAOB, LIU K K. Simulation study on penetration into target of hypervelocity projectile in electromagnetic railgun[J]. Ship Science and Technology, 2020, 42(1):181-185
[3] 史梁, 沈培辉, 薛建锋. 弹体高速侵彻半无限钢靶的研究[J]. 兵工自动化, 2016, 35(1):34-36
SHI L, SHEN P H, XUE J F. Study of projectile penetration into semi-infinite steel targets[J]. Ordnance Industry Automation, 2016, 35(1):34-36
[4] 兰彬, 文鹤鸣. 钨合金长杆弹侵彻半无限钢靶的数值模拟及分析[J]. 高压物理学报, 2008, 22(3):245-252
LAN B, WENHM. Numerical simulation and analysis of the penetration of tungsten-alloy long rod into semi-infinite armor steel targets[J]. Chinese Journal of High Pressure Physics, 2008, 22(3):245-252
[5] 吴世永, 王伟力, 江炎兰. 钨合金弹侵彻圆柱壳靶板的数值模拟[J]. 四川兵工学报, 2011, 32(11):29-32
[6] 袁亚楠, 胡健, 王少龙, 等. 钨合金长杆弹斜侵彻间隔靶的数值仿真与试验[J]. 四川兵工学报, 2011, 32(7):10-15
[7] 程兴旺, 王富耻, 李树奎, 等. 不同头部形状长杆弹侵彻过程的数值模拟[J]. 四川兵工学报, 2007, 28(8):930-933
[8] GORDON R. Johnson, WILLISM H. Cook. A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures.
[9] 王猛. 细晶钨合金穿甲弹芯侵彻机理分析及试验研究[D]. 南京:南京理工大学, 2013.5.
[10] 王维占, 赵太勇, 陈志刚, 等. 不同材料双层球缺罩侵彻特性的研究[J]. 爆破器材, 2017, 46(5):43-47
[11] 丛美华, 黄德武, 段占强, 等. 小口径穿甲试验靶板弹孔和残余弹体显微组织研究[J]. 2002, 22(5):594−598.
