Energy dissipation analysis of elliptical truncated oval rigid projectilepenetrating stiffened plate

WANG Hao; PAN Xin; WU Haijun; PI Aiguo; LI Jinzhu; HUANG Fenglei

doi:10.11883/bzycj-2018-0350

Volume 39 Issue 10

Oct. 2019

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WANG Hao, PAN Xin, WU Haijun, PI Aiguo, LI Jinzhu, HUANG Fenglei. Energy dissipation analysis of elliptical truncated oval rigid projectilepenetrating stiffened plate[J]. Explosion And Shock Waves, 2019, 39(10): 103203. doi: 10.11883/bzycj-2018-0350

Citation:

WANG Hao, PAN Xin, WU Haijun, PI Aiguo, LI Jinzhu, HUANG Fenglei. Energy dissipation analysis of elliptical truncated oval rigid projectilepenetrating stiffened plate[J]. Explosion And Shock Waves, 2019, 39(10): 103203. doi: 10.11883/bzycj-2018-0350

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Energy dissipation analysis of elliptical truncated oval rigid projectilepenetrating stiffened plate

doi: 10.11883/bzycj-2018-0350

State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Received Date: 2018-09-14
Rev Recd Date: 2018-11-26

Available Online: 2019-09-25

Publish Date: 2019-10-01

Abstract

Abstract

In order to obtain the residual velocity of elliptical section truncated oval rigid projectile penetrating stiffened plate, according to the failure characteristics of elliptical section projectile penetrating target plate, it is considered that the main energy dissipation modes of target plate during penetration are plug shear deformation work and kinetic energy, hole expanding plastic deformation work, petal dynamic work and bending deformation work, dishing deformation work and lateral dishing deformation of the stiffened plate. Each energy calculation method is deduced theoretically, and the strain rate effects of target hole enlargement, petal bending and sag deformation are quantitatively considered in the calculation. According to the energy conservation relationship, the prediction formulas of residual velocity and ballistic limit velocity of elliptical cross-section projectiles are obtained, and the model is validated by experimental results. The results show that the penetration model considering the strain hardening and strain rate effect of the target plate can accurately predict the residual velocity of the projectile. With the increase of the ratio of the long axis to the short axis of the elliptical cross-section projectile body, the ballistic limit velocity of the target plate increases approximately linearly. When the ratio of the long axis to the short axis is less than 3, the main energy dissipation of the stiffened plate is the petal bending deformation energy and dishing deformation energy.
- elliptical cross-section projectile,
- stiffened plate,
- residual velocity,
- strain rate effect

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References(20)

References

[1]	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, 20(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.
[2]	杜忠华, 朱建生, 王贤治, 等. 异型侵彻体垂直侵彻半无限靶板的分析模型 [J]. 兵工学报, 2009, 30(4): 403–407. DOI: 10.3321/j.issn:1000-1093.2009.04.005. DU Zhonghua, ZHU Jiansheng, WANG Xianzhi, et al. Analytical model on non-circular penetrator impacting semi-infinite target perpendicularly [J]. Acta Armamentarii, 2009, 30(4): 403–407. DOI: 10.3321/j.issn:1000-1093.2009.04.005.
[3]	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. DOI: 10.3969/j.issn.1004-244X.2011.03.002. 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 and Engineering, 2011, 34(3): 5–8. DOI: 10.3969/j.issn.1004-244X.2011.03.002.
[4]	BLESS S J, LITTLEFIELD D L, ANDERSON C E, et al. The penetration of non-circular cross-section penetrators [C] // Proceedings of the 15th International Symposium on Ballistics. Jerusalem, Israel: IBS, 1995: 21−24.
[5]	BLESS S J. Penetration mechanics of non-circular rods [C] // AIP Conference Proceedings. AIP, 1996: 1119−1122.
[6]	王文杰, 张先锋, 邓佳杰, 等. 椭圆截面弹体侵彻砂浆靶规律分析 [J]. 爆炸与冲击, 2018, 38(1): 164–173. DOI: 10.11883/bzycj-2017-0020. WANG Wenjie, ZHANG Xianfeng, DENG jiajie, et al. Analysis of projectile penetrating into mortar target with elliptical cross-section [J]. Explosion and Shock Waves, 2018, 38(1): 164–173. DOI: 10.11883/bzycj-2017-0020.
[7]	LANDKOF B, GOLDSMITH W. Petalling of thin, metallic plates during penetration by cylindro-conical projectiles [J]. International Journal of Solids & Structures, 1985, 21(3): 245–266. DOI: 10.1016/0020-7683(85)90021-6.
[8]	张中国, 黄风雷, 段卓平, 等. 弹体侵彻带加强筋结构靶的实验研究 [J]. 爆炸与冲击, 2004, 24(5): 431–436. DOI: 10.3321/j.issn:1001-1455.2004.05.009. ZHANG Zhongguo, HUANG Fenglei, DUAN Zhuoping, et al. The experimental research for projectile penetrating the structural target with rebar [J]. Explosion and Shock Waves, 2004, 24(5): 431–436. DOI: 10.3321/j.issn:1001-1455.2004.05.009.
[9]	CHEN Y, WANG Y, TANG P, et al. Impact characteristics of stiffened plates penetrated by sub-ordnance velocity projectiles [J]. Journal of Constructional Steel Research, 2008, 64(6): 634–643. DOI: 10.1016/j.jcsr.2007.12.006.
[10]	SONG W, NING J, WANG J. Normal impact of truncated oval-nosed projectiles on stiffened plates [J]. International Journal of Impact Engineering, 2008, 35(9): 1022–1034. DOI: 10.1016/j.ijimpeng.2007.05.008.
[11]	徐双喜, 吴卫国, 李晓彬, 等. 截锥形弹穿甲单加筋板的破坏特性 [J]. 爆炸与冲击, 2011, 31(1): 62–68. DOI: 10.11883/1001-1455(2011)01-0062-07. XU Shuangxi, WU Weiguo, LI Xiaobin, et al. Falure characteristics of a conical projectile penetrating single stiffened plate [J]. Explosion and Shock Waves, 2011, 31(1): 62–68. DOI: 10.11883/1001-1455(2011)01-0062-07.
[12]	HE Q, XIE Z, XUAN H, et al. Ballistic testing and theoretical analysis for perforation mechanism of the fan casing and fragmentation of the released blade [J]. International Journal of Impact Engineering, 2016, 91: 80–93. DOI: 10.1016/j.ijimpeng.2016.01.001.
[13]	ZHAN T, LI J, LV S, et al. Residual velocity for the truncated ogival-nose projectile into stiffened plates [J]. Ships and Offshore Structures, 2015, 11(6): 636–644. DOI: 10.1080/17445302.2015.1041441.
[14]	黄涛, 吴卫国, 李晓彬, 等. 截锥形弹体斜穿甲花瓣型破坏模型 [J]. 振动与冲击, 2010, 29(2): 125–127. DOI: 10.3969/j.issn.1000-3835.2010.02.028. HUANG Tao, WU Weiguo, LI Xiaobin, et al. Oblique armor-piercing effect of a truncated cylindro-conical projectile [J]. Journal of Vibration and Shock, 2010, 29(2): 125–127. DOI: 10.3969/j.issn.1000-3835.2010.02.028.
[15]	XU S X, WU W G, LI X B, et al. Petal failure characteristics of a conical projectile penetrating a thin plate at high oblique angle [J]. Journal of Shanghai Jiaotong University (Science), 2010, 15(4): 434–440. DOI: 10.1007/s12204-010-1029-8.
[16]	WU Q G, WEN H M. Petalling of a thin metal plate struck by a conical-nosed projectile [J]. Acta Mechanica Solida Sinica, 2015, 28(5): 568–577. DOI: 10.1016/S0894-9166(15)30050-1.
[17]	LEE Y W, WIERZBICKI T. Fracture prediction of thin plates under localized impulsive loading. Part I: dishing [J]. International Journal of Impact Engineering, 2005, 31(10): 1253–1276. DOI: 10.1016/j.ijimpeng.2004.07.010.
[18]	THOMSON W T. An approximate theory of armor penetration [J]. Journal of Applied Physics, 1955, 26(1): 80–82. DOI: 10.1063/1.1721868.
[19]	CORBETT G G, REID S R, JOHNSON W. Impact loading of plates and shells by free-flying projectiles: a review [J]. International Journal of Impact Engineering, 1996, 18(2): 141–230. DOI: 10.1016/0734-743X(95)00023-4.
[20]	JONES N. Structural impact [M]. 2nd ed. Cambridge: Cambridge University Press, 2011: 360−361. DOI: 10.1017/CBO9780511820625