Abstract：The mass erosion of kinetic energy projectile penetrating concrete target at high speed is an important reason for the reduction of penetration efficiency. The experiments of high hardness projectile with a mass of 20kg and a diameter of 100mm penetrating into C40 concrete at a speed of nearly 1.0 km/s were conducted in this paper. The erosion parameters of the projectile and the changes in the nose were described in detail, and the erosion mechanism of the large mass projectile was analyzed. The proportion of melting erosion and cutting erosion was calculated. The results show that when different projectiles penetrate the same concrete strength at the same initial velocity, the surface pressure of the projectile nose is affected by the weight of the projectile. When the velocity is larger than critical velocity, the surface pressure increases with the increase of the projectile weight. The mass erosion caused by projectile penetration into concrete is related to the weight of the projectile, and the erosion phenomenon is more pronounced when the projectile weight is smaller. The proportion of cutting erosion decreases with the increase of projectile hardness, amd increasing the material hardness of the projectile has a more significant effect on reducing the mass erosion for the large mass projectiles.
董凯，江坤，王浩，王健，姜春雷，史律. 大质量弹丸高速侵彻混凝土质量侵蚀试验研究[J]. 振动与冲击, 2024, 43(12): 148-155.
DONG Kai,JIANG Kun,WANG Hao,WANG Jian,JIANG Chunlei,SHI Lü. An experimental study on mass erosion for high speed and high mass projectile penetrate concrete. JOURNAL OF VIBRATION AND SHOCK, 2024, 43(12): 148-155.
[1] 任辉启, 穆朝民, 刘瑞朝, 等. 精确制导武器侵彻效应与工程防护[M]. 科学出版社, 2015.
[2] FORRESTAL M J, FREW D J, HANCHAK S J, et al. Penetration of grout and concrete targets with ogive-nose steel projectiles[J]. International Journal of Impact Engineering, 1996, 18(5): 465-476.
[3] FREW D J, HANCHAK S J, GREEN M L, et al. Penetration of concrete targets with ogive-nose steel rods[J]. International Journal of Impact Engineering, 1998, 21(6): 489-497.
[4] 武海军, 黄风雷, 王一楠,等. 高速侵彻混凝土弹体头部侵蚀终点效应实验研究[J]. 兵工学报, 2012, 33(1): 48-55.
WU H J, HUANG F L, WANG Y N, et al. Experimental investigation on projectile nose eroding effect of high-velocity penetration into concrete[J]. Atca Armamentarii, 2012, 33(1): 48-55.
[5] 杨建超, 左新建, 何翔,等. 弹体高速侵彻混凝土质量侵蚀实验研究[J]. 实验力学, 2012, 27(1): 122-127.
YANG J C, ZUO X J, HE X, et al. Experimental study of projectile mass loss in high velocity penetration of concrete target[J]. Journal of Experimental Mechanics, 2012, 27(1): 122-127. DOI: CNKI:SUN:SYLX.0.2012-01-017.
[6] MU Z C, ZHANG W. An investigation on mass loss of ogival projectiles penetrating concrete targets[J]. International Journal of Impact Engineering, 2011, 38: 770-778.
[7] 郭磊, 何勇, 潘绪超,等. 高速侵彻混凝土弹体侵蚀效应试验研究[J]. 实验力学, 2020, 35(1):82-90.
GUO L, HE Y, PAN X C, et al. Experimental study on mass loss of projectile subjected to high-velocity penetration into concrete target[J]. Journal of Experimental Mechanics, 2020, 35(1):82-90.
[8] 何丽灵, 陈小伟, 范瑛. 先进钻地弹高速侵彻实验中质量磨蚀金相分析[J]. 爆炸与冲击, 2012, 32(5): 515-522.
HE L, CHEN X, FAN Y. Metallographic observation of reduced-scale advanced EPW after high-speed penetration[J]. Explosion and Shock Waves, 2012, 32(5): 515-522.
[9] GUO L, HE Y, ZHANG X, et al. Study mass loss at microscopic scale for a projectile penetration into concrete[J]. International Journal of Impact Engineering, 2014, 72(4): 17-25.
[10] LI X, LIU Y, YAN J, et al. High-speed penetration of ogive-nose projectiles into thick concrete targets: Tests and a projectile nose evolution model[J]. Defence Technology, 2023.
[11] KONG X, WU H, FANG Q, et al. Projectile penetration into mortar targets with a broad range of striking velocities: Test and analyses[J]. International Journal of Impact Engineering, 2017, 106: 18-29.
[12] CHEN X, LU F, Zhang D. Penetration trajectory of concrete targets by ogived steel projectiles - experiments and simulations[J]. International Journal of Impact Engineering, 2018, 120, 202-213.
[13] LU Y, ZHANG Q, XUE Y, et al. Hypervelocity penetration of concrete targets with long-rod steel projectiles: experimental and theoretical analysis[J]. International Journal of Impact Engineering, 2021, 148: 103742.
[14] 王可慧, 周刚, 李明,等. 弹体高速侵彻钢筋混凝土靶试验研究[J]. 爆炸与冲击, 2021, 41(11): 113302.
WANG K, ZHOU G, LI M, et al. Experimental research on the mechanism of a high-velocity projectile penetrating into a reinforced concrete target[J]. Explosion and Shock Waves, 2021, 41(11): 113302.
[15] 汪斌, 曹仁义, 谭多望. 大质量高速动能弹侵彻钢筋混凝土的实验研究[J]. 爆炸与冲击, 2013, 33(1): 98-102.
WANG B, CAO R, TAN D. Experimental study on penetration of reinforced concrete by a high-speed penetrator with large mass[J]. Explosion and Shock Waves, 2013, 33(1): 98-102..
[16] Young C W. Penetration equations[R]. SAND97-2426, 1997.
[17] FREW D J, FORRESTAL M J, CARGILE J D. The effect of concrete target diameter on projectile deceleration and penetration depth[J]. International Journal of Impact Engineering, 2006, 32: 1584-1594.
[18] SILLING S A, FORRESTAL M J. Mass loss from abrasion on ogive-nose steel projectiles that penetrate concrete targets[J]. International Journal of Impact Engineering, 2007, 34(11): 1814-1820.
[19] NING J, LI Z, MA T, et al. Failure behavior of projectile abrasion during high-speed penetration into concrete[J]. Engineering Failure Analysis, 2020, 115: 104634.
[20] FORRESTAL M J, TZOU D Y. A spherical cavity-expansion penetration model for concrete targets[J]. International Journal of Solids and Structures, 1997, 34 (31): 4127-4146.
[21] FORRESTAL M J, FREW D J, HICKERSON J P, et al. Penetration of concrete targets with deceleration-time measurements[J]. International Journal of Impact Engineering, 2003, 28: 479-497.
[22] DONG K, JIANG K, JIANG C, et al. Study on Mass Erosion and Surface Temperature during High-Speed Penetration of Concrete by Projectile Considering Heat Conduction and Thermal Softening[J]. Materials, 2023, 16: 3604.
