双硬度靶对球形弹丸的防护性能

周楠; 王金相; 杨瑞; 谢君

doi:10.11858/gywlxb.2014.05.009

双硬度靶对球形弹丸的防护性能

doi: 10.11858/gywlxb.2014.05.009

南京理工大学瞬态物理重点实验室，江苏南京 210094

基金项目: 国家自然科学基金(11272158);瞬态物理重点实验室基金(9140C300402120C30113);部委预研支撑基金(62201070510);中国博士后科学基金(2011M500929);江苏省普通高校研究生科研创新计划项目(CXLX11_0230)

详细信息

作者简介:
周楠(1986-), 男, 博士研究生, 主要从事爆炸与冲击动力学研究. E-mail:nudge@163.com

通讯作者:
王金相(1978-), 男, 博士, 副研究员, 主要从事爆炸与冲击动力学研究.E-mail: wjxdlut@sina.com

中图分类号: O385
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出版历程
- 收稿日期: 2012-11-16
- 修回日期: 2013-04-17

Anti-Penetration Performance of Double Hardness Target Impacted by a Spherical Projectile

Science and Technology on Transient Physics Laboratory, Nanjing University of Science and Technology, Nanjing 210094, China

摘要

摘要: 以钢/铝双硬度爆炸焊接复合靶为研究对象，采用系列弹道实验和数值模拟方法，研究了其在球形弹丸垂直侵彻作用下的抗侵彻性能。侵彻实验利用直径为14.5 mm的滑膛枪发射直径为6 mm的钢质球形弹丸；采用LS-DYNA3D非线性有限元程序和有限元-光滑粒子流体动力学(FE-SPH)耦合法，进行数值模拟。基于实验和数值模拟结果，分析了不同靶板的毁伤机理和破坏模式，以及靶板厚度、强度等因素对复合靶抗侵彻性能的影响。结果表明：在球形弹丸的垂直侵彻作用下，钢面板发生剪切冲塞破坏，铝背板发生延性扩孔破坏；对于双层靶而言，钢面板与铝背板的厚度比约为2/3时，复合靶的抗侵彻性能最差；数值计算结果与实验结果吻合良好，表明FE-SPH耦合算法可较好地预测双层复合靶板的抗侵彻性能。
- 双硬度靶 /
- 抗侵彻性能 /
- 毁伤机理 /
- 有限元-光滑粒子流体动力学耦合法
Abstract: Ballistic experiments and numerical simulation were adopted to analyze the anti-penetration performance of double hardness explosively welded steel/aluminum plates penetrated vertically by a spherical projectile.A 14.5 mm diameter smoothbore gun was used to launch the spherical steel projectile with a diameter of 6 mm, and the finite element code LS-DYNA3D with the coupling algorithm of finite element and smoothed particle hydrodynamics (FE-SPH) was applied to simulate the penetration process.The effects of thickness and strength of the explosively welded plates on the anti-penetration performance and damage mechanism were analyzed.The results show that the damage mechanism of the steel front layer is shearing and plugging and that of the aluminum rear layer is prolonging deformation.For a two-layer steel/aluminum plate, the anti-penetration performance is the worst when the thickness ratio of steel and aluminum plate is about 2/3.The numerical simulation results are well agreed with the experimental ones, so the FE-SPH method can predict the anti-penetration performance of two-layer explosively welded plates well.
- double hardness target /
- anti-penetration performance /
- damage mechanism /
- FE-SPH method

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图 1(a) 弹丸实物图

Figure 1(a). Physical picture of projectile

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图 1(b) 实验装置

Figure 1(b). Experimental set-up

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图 2 FE-SPH计算模型

Figure 2. FE-SPH calculation model

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图 3 弹丸以不同的初速度侵彻时弹孔的径向变形

Figure 3. Radial deformation of aperturesunder different initial velocities

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图 4 不同时刻靶板S2Al3的侵彻形貌

Figure 4. Penetration diagram of target S2Al3 at different times

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图 5 球形弹丸垂直侵彻靶板的实验结果

Figure 5. Experimental results of targets penetrated vertically by a spherical projectile

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图 6 弹丸速度随时间的变化曲线

Figure 6. Curves of projectilevelocity versus time

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图 7 v₀=278.8 m/s时靶板S2Al3典型的剪切毁伤实验结果

Figure 7. Typical shearing experimental result oftarget S2Al3 at v₀=278.8 m/s

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图 8 弹道极限速度随钢面板与铝背板厚度比变化的曲线

Figure 8. Ballistic limit velocity versus thickness ratio of steel front plate and aluminum back plate

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表 1 不同厚度组合的钢/铝双层靶

Table 1. Two-layer steel/aluminum plates with different thickness combinations

Sample No.	Thickness/(mm)
Sample No.	304L steel	LY12 aluminum
S1Al4	1.0	4.0
S2Al3	2.0	3.0
S3Al2	3.0	2.0
S4Al1	4.0	1.0

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表 2 钢和铝的材料参数

Table 2. Material parameters of steel and aluminum

Material	ρ/(g/cm³)	S₁/(MPa)	S₂/(MPa)	S₃/(MPa)	γ₀	a	A/(MPa)	B/(MPa)	N	C	M	D₁	D₂	D₃	D₄	D₅
Steel	7.85	1.64	2.94	5.00	1.16	0.46	792	510	0.260	0.014	1.030	-0.800	2.100	-0.500	0.002	0.61
Aluminum	2.70	2.00	3.00	5.00	1.02	0.46	148	346	0.183	0.001	0.859	0.071	1.248	-1.142	0.147	0

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参考文献(16)

[1]	Skaggs S R. A brief history of ceramic armor development[J]. Ceram Eng Sci Proc, 2003, 24(3): 337-349.
[2]	Elek P, Jaramaz S, Mickovic D. Modeling of perforation of plates and multi-layered metallic targets[J]. Int J Solids Struct, 2005, 42(3/4): 1209-1224. http://www.sciencedirect.com/science/article/pii/S0020768304003762
[3]	Solberg J K, Leinum J R, Embury J D, et al. Localised shear banding in Weldox steel plates impacted by projectiles[J]. Mech Mater, 2007, 39(9): 865-880. doi: 10.1016/j.mechmat.2007.03.002
[4]	Dey S, Børvik T, Hopperstad O S, et al. On the influence of constitutive relation in projectile impact of steel plates[J]. Int J Impact Eng, 2007, 34(3): 464-486. doi: 10.1016/j.ijimpeng.2005.10.003
[5]	Dey S, Børvik T, Teng X, et al. On the ballistic resistance of double-layered steel plates: An experimental and numerical investigation[J]. Int J Solids Struct, 2007, 44(1): 6701-6723. http://www.sciencedirect.com/science/article/pii/S0020768307001242
[6]	Joshi V S, Carney T C. Modeling of bullet penetration in explosively welded composite armor plate[J]. AIP Conf Proc, 2006, 845(1): 1387-1390.
[7]	尹放林, 王明洋, 钱七虎.弹体垂直侵彻深度工程计算模型[J].爆炸与冲击, 1997, 17(4): 333-338. http://www.cnki.com.cn/Article/CJFDTotal-BZCJ704.006.htm Yin F L, Wang M Y, Qian Q H. An engineering computing model for penetration depth of projectile normal into target[J]. Explosion and Shock Waves, 1997, 17(4): 333-338. (in Chinese) http://www.cnki.com.cn/Article/CJFDTotal-BZCJ704.006.htm
[8]	王政, 倪玉山, 曹菊珍, 等.基于速度势侵彻模型的应用研究[J].高压物理学报, 2005, 19(1): 10-16. Wang Z, Ni Y S, Cao J Z, et al. Application of the velocity potential model to penetration study[J]. Chinese Journal of High Pressure Physics, 2005, 19(1): 10-16. (in Chinese)
[9]	蒋志刚, 曾首义, 周建平.中等厚度金属靶板的三阶段贯穿模型[J].兵工学报, 2007, 28(9): 1046-1051. Jiang Z G, Zeng S Y, Zhou J P. A three-stage model for the perforation of moderately thick metallic plates[J]. Acta Armamentarii, 2007, 28(9): 1046-1051. (in Chinese)
[10]	Zhou N, Wang J X, Yang R, et al. Damage mechanism and anti-penetration performance of multi-layered explosively welded plates impacted by spherical projectile[J]. Theor Appl Fract Mech, 2012, 60(1): 23-30.
[11]	周楠, 王金相, 谢君, 等.球形弹丸作用下钢/铝爆炸复合靶的抗侵彻性能计算与分析[J].高压物理学报, 2013, 27(6): 839-846. http://qikan.cqvip.com/Qikan/Article/Detail?id=48594281 Zhou N, Wang J X, Xie J, et al. Calculation and analysis for the anti-penetration performance of explosively welded steel/aluminum plates target by the penetration of spherical projectile[J]. Chinese Journal of High Pressure Physics, 2013, 27(6): 839-846. (in Chinese) http://qikan.cqvip.com/Qikan/Article/Detail?id=48594281
[12]	李裕春, 时党勇, 赵远. ANSYS 11.0/LS-DYNA基础理论与工程实践[M].北京: 中国水利水电出版社, 2006: 437. Li Y C, Shi D Y, Zhao Y. ANSYS 11.0/LS-DYNA Basic Theory and Engineering Practice[M]. Beijing: China Water Power Press, 2006: 437. (in Chinese)
[13]	Kurtaran H, Buyuk M, Eskandarian A. Design automation of a laminated armor for best impact performance using approximate optimization method[J]. Int J Impact Eng, 2003, 29(1): 397-406.
[14]	Gupta N K, Iqbal M A, Sekhon G S. Effect of projectile nose shape, impact velocity and target thickness on the deformation behavior of layered plates[J]. Int J Impact Eng, 2008, 35(1): 37-60. doi: 10.1016/j.ijimpeng.2006.11.004
[15]	Chen X W, Li Q M. Shear plugging and perforation of ductile circular plates struck by a blunt projectile[J]. Int J Impact Eng, 2003, 28(5): 513-536. doi: 10.1016/S0734-743X(02)00077-5
[16]	张建春, 张华鹏.军用盔甲[M].北京: 长城出版社, 2003. Zhang J C, Zhang H P. Body Armor[M]. Beijing: Great Wall Pubishing House, 2003. (in Chinese)