Experimental study on the vertical penetration of novel-section projectiles into a semi-infinite metal target
YUAN Tao1, ZHAO Bin2, GAO Guangfa1, DU Zhonghua1， WANG Xiaodong1
1.School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China；
2.No.52 Institute of China North Industry Group,Yantai 264003, China
Abstract：The novel-section projectile is a rod armour-piercing projectile with non-circular penetrating section.Five armour-piercing projectiles with equal mass, cross-section area and rod length in the shapes of circular, triangle, square, cruciform and grooved circular respectively were designed to explore the influence of cross-section shape on the penetration efficiency of rod armour-piercing projectiles.The experiments of five kinds of projectiles impacting a semi-infinite metal target vertically at different velocities were carried out by using a 25 mm ballistic gun.Integratedly considering the crater depth and target-plane appearance, the penetration of different cross-section shaped projectiles impacting the semi-infinite metal target vertically was analyzed, and the penetration mechanism was preliminarily discussed.The results show that in the test velocity range (1 273—1 747 m/s),the dimensionless penetration depth increment and increment rate of triangule, square and cruciform cross-section projectiles relatively to circular penetrators increase with the increase of target velocity,but those of grooved circular penetrators are not significant.The shear-failure of novel-section projectiles is easy to occur, leading to make the head area of novel-section projectiles smaller than that of circular section projectiles during the process of penetration,thus, reduce the penetration resistance.As a result,the penetration efficiency of the three novel-section (triangle, square, cruciform cross-section)projectiles is higher than that of circular projectiles, among them the cruciform cross-section projectile has the highest penetration efficiency.
袁焘1，赵斌2，高光发1，杜忠华1，王晓东1. 异形截面侵彻体垂直侵彻半无限金属靶试验研究[J]. 振动与冲击, 2020, 39(22): 228-233.
YUAN Tao1, ZHAO Bin2, GAO Guangfa1, DU Zhonghua1， WANG Xiaodong1. Experimental study on the vertical penetration of novel-section projectiles into a semi-infinite metal target. JOURNAL OF VIBRATION AND SHOCK, 2020, 39(22): 228-233.
[1]隋树元. 终点效应学[M]. 国防工业出版社, 2000.
Sui Shuyuan,Terminal Effects[M]. National Defence Industry Press, 2000
[2]陈哲. 7.62×51毫米穿甲弹研究[D].南京：南京理工大学, 2016.
Chen Zhe, Research on 7.62× 51mm Armor Piercing Projectile[D]. Nanjing: Nanjing University of Science and Technology, 2016. (in Chinese)
[3]冉隆云. 火炮弹药发展现状及趋势[J]. 国外坦克, 2004(6):19-21.
Ran Longyun, Development Status and Trend of Artillery and Ammunition[J]. Foreign Tank, 2004(6):19-21.
[4]何瑞, 毕忠安, 孟昭福. 120mm坦克炮弹药发展现状分析[J]. 国外坦克, 2015(1):42-45.
He Rui, Bi Zhongan, Meng Zhaofu. Analysis of Development Status of 120mm Tank Artillery Ammunition[J], Foreign Tank, 2015(1):42-45.
[5]Bishop R F , Hill R , Mott N F . The theory of indentation and hardness tests[J]. Proceedings of the Physical Society, 1945, 57(3):147-159.
[6]Hanagud S , Ross B . Large deformation, deep penetration theory for a compressible strain-hardening target material[J]. AIAA Journal, 1971, 9(5):905-911.
[7]Alekseevskii V P . Penetration of a rod into a target at high velocity[J]. Combustion Explosion & Shock Waves, 1966, 2(2):63-66.
[8] Zhonghua D , Chengxin D , Zhengwang Z , et al. An Experimental Study on Perforation Behavior of Segmented W_f/Zr-Based Bulk Metallic Glass Matrix Composite[J]. Rare Metal Materials and Engineering, 2016.
[9] 罗荣梅. 细晶钨合金穿甲弹靶作用机理研究[D]. 2017.
Luo Rongmei, Study on penetration mechanism of fine-grained tungsten heavy alloy penetrator Study on penetration mechanism of fine-grained tungsten heavy alloy penetrator
[10] Ochiai E . A-Bomb Tests; Three Mile Island and Other Incidents; NPPs Under Normal Operation; Depleted Uranium Bombs[J]. Hiroshima to Fukushima，2014.
[11] Abu-Qare A W , Abou-Donia M B . Depleted uranium—the growing concern[J]. Journal of Applied Toxicology, 2002, 22(3):149-152.
[12] Leonard W, Magness L. The terminal ballistic performance of microstructural oriented tungsten heavy alloy penetrators[J]. 1995.
[13]王猛. 细晶钨合金穿甲弹芯侵彻机理分析及试验研究[D].南京理工大学,2013.
Experimentation Research and Mechanism Analysis of Fine-grain Tungsten Penetrator[D]. Nanjing University of Science and Technology,
[14]王 猛 杨明川 罗荣梅 唐恩凌 . 钨合金杆式弹穿甲侵彻开坑阶段绝热剪切失效的数值模拟[J]. 振动与冲击, 2016, 35(18): 111-116.
Wang Meng, Yang Mingchuan, Luo Rongmei, Tang Enling . Numerical simulation of the adiabatic shear failure at cratering stage for tungsten alloy long rod piercing into armor. JOURNAL OF VIBRATION AND SHOCK, 2016, 35(18): 111-116.
[15] 薛晓中, 孙瑞胜, 王云,等. 细长杆异型截面弹芯的运动方程组[J]. 弹箭与制导学报, 2005, 25(3):72-74.
Xue Xiaozhong, Sun Ruisheng, Wang Yun, et al. The Movement Equations of a Non-Circular Cross-Sectional Slender Projectile[J]. Journal of Projectiles.rockets.missiles & Guidance, 2005, 25(3):72-74. (in Chinese)
[16]孙瑞胜, 薛晓中, 孙传杰. 异型弹芯飞行稳定性判据[J]. 弹箭与制导学报, 2005, 25(2).
Rui-Sheng S . Flight Stability Criterion for a Non-Circular Cross-Sectional Projectile[J]. Journal of Projectiles,Rockets,Missiles and Guidance, 2005.
[17] 孙瑞胜, 薛晓中, 孙传杰,等. 三角形截面弹芯的飞行稳定特性[J]. 南京理工大学学报(自然科学版), 2007, 31(1):6-9.
Rui-Sheng S , Xiao-Zhong X , Chuan-Jie S , et al. Flight Stability Characteristic for Triangle Cross-sectional Projectile[J]. Journal of Nanjing University of Science and Technology(Natural Science), 2007.
[18]荣光,薛晓中,孙传杰,杨云斌.异型弹芯斜侵彻靶板的数值分析[J].弹道学报,2009,21(01):5-8.
Rong Guang, Xue Xiaozhong, Sun Chuanjie, et al. Numerical analysis of a non-circular cross-sectional projectile oblique penetrating into target[J]. Journal of Ballistics, 2009, 21(1):5-8. (in Chinese)
[19]曾国强. 异型弹芯侵彻性能的研究[D]. 南京：南京理工大学, 2006.
Zeng Guoqiang. Study on penetration performance of special-shaped projectile. Nanjing: Nanjing University of Science and Technology, 2006. (in Chinese)
[20]杜忠华, 曾国强, 余春祥等.异型侵彻体垂直侵彻半无限靶板试验研究[J]. 弹道学报, 2008(1):19-21.
Du Zhonghua, Zeng Guoqiang, Yu Chunxiang, et al. Experimental Research of Novel Penetrator Vertically Penetrating Semi-infinite Target[J]. Journal of Ballistics, 2008, 20(1):19-21.(in Chinese)
[21] 高光发, 李永池, 刘卫国,等. 长杆弹截面形状对垂直侵彻深度的影响[J]. 兵器材料科学与工程, 2011, 34(3):5-8.
Gao Guangfa, Li Yongchi, Liu Weiguo, et al. Influence of the cross-section shapes of long rod projectile on the vertical penetration depth[J]. Ordnance Material Science & Engineering, 2011, 34(3):5-8. (in Chinese)
[22]Orphal D L. Phase three penetration[J]. International Journal of Impact Engineering, 1997, 20(6):601-616.
