单层A3钢薄靶在不同头型弹体斜撞击下的失效模式和防护性能研究

郭子涛,郭钊1,张伟2

振动与冲击 ›› 2018, Vol. 37 ›› Issue (1) : 27-31.

PDF(1427 KB)
PDF(1427 KB)
振动与冲击 ›› 2018, Vol. 37 ›› Issue (1) : 27-31.
论文

单层A3钢薄靶在不同头型弹体斜撞击下的失效模式和防护性能研究

  • 郭子涛 ,郭钊1,张伟2
作者信息 +

Failure patterns and ballistic resistance of thin single A3 steel targets obliquely impacted by different nose shape projectiles

  • Zitao Guo1, Guo Zhao1, Wei Zhang2
Author information +
文章历史 +

摘要

本文利用轻气炮设备对平头、卵形弹进行了以5种角度撞击2mm单层A3钢薄靶的斜穿甲试验, 得到了不同头型弹体在各个角度撞击单层靶的初始-剩余速度曲线及靶板的弹道极限,获得并对比分析了弹体头部形状、撞击角度对靶板的防护性能及失效模式的影响。结果发现,平头弹在各个撞击角度下较卵形弹更容易击穿靶板,撞击角度较大时卵形弹较平头弹更容易发生跳飞现象;靶板的防护性能与弹体造成的靶板损伤和失效模式紧密相关,随着斜撞击角度变大,平头弹造成的靶板局部穿孔毁伤模式逐步由剪切冲塞失效转向以拉伸撕裂失效为主,同时整体结构弯曲和膜变形减小,而薄板在卵形弹斜撞击下的失效模式则以局部斜形非对称花瓣开裂为主。

Abstract

Oblique perforation experiments on single A3 steel sheets with the thickness of 2 mm impacted by flat and ogival projectiles at 5 impact angles were conducted using a light-gas gun. The initial-residual velocity curves and ballistic limits for projectiles perforating single targets at different angles were obtained, meanwhile, the effects of different projectile nose shapes and obliquities on the ballistic resistance and failure patterns of targets were compared and analyzed. The results show that the target perforation by flat projectiles is easier than that by ogive nosed projectiles at each oblique angle, while the ricochet phenomenon occurs more easily for ogive projectiles at large impact angles. The ballistic resistance of targets is found to be closely related to the target damages induced by projectile impact. As the impact angle increases, the local perforation damage model of the target plate due to flat projectile impact turns gradually from the shear plugging to the dominant tensile tearing failure and the bending and film deformation of the entire structure decrease. In contrast, the oblique petal-cracking is found to be the main failure model in thin plates perforated obliquely by ogive projectiles.

关键词

单层薄板 / 斜撞击 / 防护性能 / 毁伤特性 / 弹道极限

Key words

 thin single sheets / oblique impact / ballistic resistance / damage characteristic / ballistic limit

引用本文

导出引用
郭子涛,郭钊1,张伟2. 单层A3钢薄靶在不同头型弹体斜撞击下的失效模式和防护性能研究[J]. 振动与冲击, 2018, 37(1): 27-31
Zitao Guo1, Guo Zhao1, Wei Zhang2. Failure patterns and ballistic resistance of thin single A3 steel targets obliquely impacted by different nose shape projectiles[J]. Journal of Vibration and Shock, 2018, 37(1): 27-31

参考文献

[1] Backman EM, Goldsmith W. The mechanics of penetration of projectiles into targets [J]. Int. J. Eng. Sci. 1978, 16 (1):1-99.
[2] G. G. Corbett, S. R. Reid and W. Johnson. Impact loading of plates and shells by free-flying projectiles: a review[J]. Int. J. Impact Eng. 1996, 18 (2):141-230.
[3] Gabi Ben-Dor, Anatoly Dubinsky, Tov Elperin. Ballistic impact: Recent advances in analytical modeling of plate penetration dynamics-A review[J]. Appl. Mech. Reviews. 2005, 58:355-371.
[4] Goldsmith, W. Non-Ideal Projectile Impact on Targets[J]. Int. J. Impact Eng. 1999, 22 (2-3): 95–395.
[5] T.Borvik, M. Langseth, O. S. Hopperstad, and K. A. Malo. Perforation of 12 mm thick steel plates by 20 mm diameter projectiles with flat, hemispherical and conical noses: Part I: Experimental study[J]. Int. J. Impact Eng. 2002, 27:19-35.
[6] T.Børvik, O.S. Hopperstad, T. Berstad, M. Langseth. Perforation of 12mm thick steel plates by 20mm diameter projectiles with flat, hemispherical and conical noses Part II: Numerical simulations[J]. Int. J. Impact Eng. 2002, 27:37–64
[7] N.K. Gupta, M. A. Iqbal, and G. S. Sekhon. Experimental and numerical studies on the behavior of thin aluminum plates subjected to impact by blunt and hemispherical-nosed  projectiles[J]. Int. J. Impact Eng. 2006, 32:1921-44.
[8] N.K. Gupta, M. A. Iqbal, and G. S. Sekhon. Effect of projectile nose shape, impact velocity and target thickness on deformation behavior of aluminum plates[J]. Int. J. Solids Struct. 2007, 44: 3411-39.
[9] Zhou DW, Stronge WJ. Ballistic limit for oblique impact of thin sandwich panels and spaced plates[J]. Int. J. Impact Eng. 2008,35:1339–54.
[10] Zaid,M. and Paul,B. Oblique perforation of a thin plate by truncated conical projectile[J]. J. franklin Inst. 1959, 268, 24-45.
[11] Awerbuch J, Bodner SR. An investigation of oblique perforation of metallic plates by projectiles[J]. Exp. Mech. 1977, 17:147–153.
[12] Woodward, R. L. and Baldwin. Oblique perforation of targets by small piercing projectiles[J]. J. Mech. Eng. Sci. 1979, 21:85-91.
[13] Goldsmith.W. , Finnegan, S. A. Normal and oblique impact of cylindro-conical and cylindrical projectiles on metallic plates[J]. Int. J. Impact Eng. 1986, 4:83-105
[14] Gupta, N.K and Mashu, V,. Normal and oblique impact of a kinetic energy projectile on mild steel plates[J]. Int. J. Impact Eng. 1992, 12:333-44.
[15] Piekutowski J, Forrestal MJ, Poormon KL, Warren TL. Perforation of aluminum plates with ogive-nose steel rods at normal and oblique impacts[J]. Int. J. Impact Eng .1996, 18:877–87.
[16] Gupta, N.K and Mashu, V,. An experimental study of normal and oblique impact of hard-core projectile on single and layered plates[J]. Int. J. Impact Eng. 1997, 19:295-414.
[17] M.A. Iqbal, A. Chakrabarti, S. Beniwal, N.K. Gupta. 3D numerical simulations of sharp nosed projectile impact on ductile targets[J]. Int. J. Impact Eng. 2010; 37: 185–95.
[18] T. Børvik, L. Olovsson, S. Dey, M. Langseth. Normal and Oblique Impact of Small Arms Bullets on Aa6082-T4 Aluminium Protective Plates[J]. Int. J. Impact Eng. 2011, 38 (7): 577-589
[19] 陈刚, 陈忠富, 张方举, 徐艾民, 何鹏. 截锥形弹体侵彻薄靶板实验研究[J]. 弹箭与制导学报. 2005,25(4):888-890
Chen Gang, Chen Zhongfu, Xu Aimin, He Peng. Experimental study on the penetration of thin plates by truncated conical projectiles[J].Missiles and Guidance. 2005,25(4):888-890
[20] 陈刚, 陈忠富. 截锥形空心弹体侵彻薄靶板的数值模拟[J].弹箭与制导学报. 2008, 28 (6):99-102
Chen Gang, Chen Zhongfu. Numerical study on the penetration of thin plates by truncated hollow conical projectiles[J].Missiles and Guidance. 2008, 28 (6):99-102
[21] 张青平, 陈刚, 屈明. 截锥型战斗部斜穿靶数值模拟研究[J].含能材料. 2005, 13(4):222-224
Zhang Qingping, Chen Gang, Qu Ming. Numerical study on the oblique perforation of targets by truncated conical warhead. Energetic Materials. 2005, 13(4): 222-224

PDF(1427 KB)

Accesses

Citation

Detail

段落导航
相关文章

/