月牙形空腔结构金属靶的抗弹性能分析

高伟韬; 彭克锋; 张永亮; 郑航; 赵凯; 郑志军

doi:10.11883/bzycj-2020-0473

月牙形空腔结构金属靶的抗弹性能分析

doi: 10.11883/bzycj-2020-0473

中国科学技术大学近代力学系中国科学院材料力学行为和设计重点实验室，安徽合肥 230027

基金项目: 中央高校基本科研业务费专项资金（WK2090000019）

详细信息

作者简介:
高伟韬（1995－　），男，博士研究生，gweitao@mail.ustc.edu.cn

通讯作者:
郑志军（1979－　），男，博士，副教授，zjzheng@ustc.edu.cn

中图分类号: O385
计量
- 文章访问数: 654
- HTML全文浏览量: 396
- PDF下载量: 110
- 被引次数: 0
出版历程
- 收稿日期: 2020-12-25
- 修回日期: 2021-04-02
- 网络出版日期: 2021-05-07
- 刊出日期: 2021-05-05

On ballistic performance of a metal target with crescent-shaped cavity structure

CAS Key Laboratory of Mechanical Behavior and Design of Materials, Department of Modern Mechanics, University of Science and Technology of China, Hefei 230027, Anhui, China

摘要

摘要: 为提高金属靶的抗弹性能，设计了一种含有月牙形空腔结构的金属靶。利用ABAQUS软件对月牙形空腔结构在12.7 mm穿甲燃烧弹弹芯侵彻下的弹体偏转性能进行了数值模拟研究，讨论了月牙形状、弹着点和空间排布对弹体偏转效果的影响。结果表明：月牙形状对弹体的偏转效果有显著的影响；空腔结构在不同弹着点表现出不同的弹体偏转性能，处于空腔胞元最薄弱处附近的弹着点弹体偏转角度明显小于其他位置；空腔胞元空间排布的非对称化处理能够提升空腔结构对子弹的偏转效果。
- 月牙形空腔结构 /
- 金属靶 /
- 抗弹性能 /
- 侵彻 /
- 弹体偏转
Abstract: To improve the ballistic performance of metal targets, a metallic structure composed of a series of crescent-shaped cavity cells, whose spatial distribution is similar to a honeycomb, was proposed. Each cavity cell is formed by two balls with an identical diameter offset by a certain distance and its shape looks like a crescent moon. The deflection performance of crescent-shaped cavity structures impacted by 12.7 mm armor-piercing incendiary projectile cores at an initial velocity of 818 m/s was studied numerically. Based on 3D voxel models, numerical simulation was carried out by using the finite element code ABAQUS/Explicit. The deflection angle of the projectile related to the initial impact direction was measured in the process of penetration simulation. By comparing with the experimental results in the literature, a virtual test was carried out to verify the validity of the finite element model. The influences of crescent shape, hitting position and space arrangement of cavity cells on the deflection performance were analyzed. The results show that the crescent shape has a significant effect on the overall deflection performance of the target. The deflection angle of the projectile increases with the increase of the cavity diameter, but the protection performance of the structure with larger cavity diameter becomes weaker. A cavity diameter of 18 mm with the offset distance of 5.4 mm may be appropriate when considering a high deflection performance without significant drop of the protection performance of the target plate. The target impacted by the projectile at different hitting positions shows different deflection performances. The deflection angle of the projectile is much large at those positions where the material distribution has a high asymmetry. The asymmetric treatment of the space arrangement of cavity cells can improve the deflection effect of the cavity structure. The deflection mechanism of the cavity structure is that when the projectile penetrates the interface between the material and cavity inside the target plate, the projectile is subjected to an asymmetric force distribution, which affects the subsequent penetration process.
- crescent-shaped cavity structure /
- metal target /
- ballistic performance /
- penetration /
- projectile deflection

HTML全文

图 1 弹体冲击空腔结构靶板的示意图

Figure 1. Schematic diagram showing a projectile impacting a cavity structure target

下载: 全尺寸图片幻灯片

图 2 靶板几何结构和尺寸

Figure 2. Geometric structures and sizes of targets

下载: 全尺寸图片幻灯片

图 3 弹靶有限元模型

Figure 3. A finite element model for a projectile and a target

下载: 全尺寸图片幻灯片

图 4 弹体偏转角度和角速度计算

Figure 4. Calculation of deflection angle and angular velocity of the projectile

下载: 全尺寸图片幻灯片

图 5 刚性弹侵彻603钢靶的变形图

Figure 5. Deformation diagram of a 603 steel target impacted by a rigid projectile

下载: 全尺寸图片幻灯片

图 6 靶板(d=16 mm, α=0.3)的变形和压强云图

Figure 6. Deformation and pressure cloud of the target with d=16 mm and α=0.3

下载: 全尺寸图片幻灯片

图 7 偏离度α对子弹偏转角度和角速度的影响

Figure 7. Influence of deviation degree α on the deflection angle and angular velocity of a projectile

下载: 全尺寸图片幻灯片

图 8 含有直径为16 mm的月牙形孔洞的靶板在不同偏离度时的变形

Figure 8. Deformation of the target with a 16-mm-diameter crescent-like hole at different deviation degrees

下载: 全尺寸图片幻灯片

图 9 不同偏离度时的月牙形状

Figure 9. Crescent shapes at different deviation degrees

下载: 全尺寸图片幻灯片

图 10 不同球径时子弹最大偏转角度随偏离度的变化曲线

Figure 10. Change of the maximum deflection angle with deviation degree at different sphere diameters

下载: 全尺寸图片幻灯片

图 11 α=0.3时靶板的变形

Figure 11. Deformation of targets at α=0.3

下载: 全尺寸图片幻灯片

图 12 弹着点2示意图

Figure 12. Diagram of hitting position 2

下载: 全尺寸图片幻灯片

图 13 α=0.3时θ_max随β的变化曲线

Figure 13. Change of θ_max with β at α=0.3

下载: 全尺寸图片幻灯片

图 14 不同弹着点时弹体最大偏转角

Figure 14. The maximum deflection angles of the projectile at different hitting positions

下载: 全尺寸图片幻灯片

图 15 弹体偏转角随时间的变化

Figure 15. Change of deflection angle of projectile with time

下载: 全尺寸图片幻灯片

图 16 弹体偏转俯视图

Figure 16. Top views of projectile deflection

下载: 全尺寸图片幻灯片

表 1 603装甲钢材料模型参数^[13]

Table 1. Material model parameters of 603 armor steel ^[13]

材料	ρ₀/(g·cm⁻³)	G/GPa	c_p/(J·kg⁻¹·K⁻¹)	c₀/(m·s⁻¹)	s₁	γ₀	χ	T_r/K	T_m/K	${\dot \varepsilon _0}$ /s⁻¹
603钢	7.8	79.2	477	4 570	1.33	1.67	0.9	300	1 760	1.0

材料	A/MPa	B/MPa	n	C	m	D₁	D₂	D₃	D₄	D₅
603钢	950	660	0.232	0.008	1.03	−0.8	2.0	−0.47	2×10⁻⁴	0.61

下载: 导出CSV

参考文献(15)

[1]	BEN-MOSHE D, TARSI Y, ROSENBERG G. An armor assembly for armored vehicles: European Patent 0209221A1 [P]. 1986-05-13.
[2]	BALOS S, GRABULOV V, SIDJANIN L, et al. Geometry, mechanical properties and mounting of perforated plates for ballistic application [J]. Materials and Design, 2010, 31(6): 2916–2924. DOI: 10.1016/j.matdes.2009.12.031.
[3]	MISHRA B, RAMAKRISHNA B, JENA P K, et al. Experimental studies on the effect of size and shape of holes on damage and microstructure of high hardness armour steel plates under ballistic impact [J]. Materials and Design, 2013, 43: 17–24. DOI: 10.1016/j.matdes.2012.06.037.
[4]	RADISAVLJEVIC I, BALOS S, NIKACEVIC M, et al. Optimization of geometrical characteristics of perforated plates [J]. Materials and Design, 2013, 49: 81–89. DOI: 10.1016/j.matdes.2012.12.010.
[5]	胡丽萍, 王智慧, 满红, 等. 孔结构间隙复合装甲位置效应研究 [J]. 兵器材料科学与工程, 2010, 33(1): 89–90. DOI: 10.14024/j.cnki.1004-244x.2010.01.034. HU L P, WANG Z H, MAN H, et al. Study on the spot effect of spaced composite armor with multi-holes [J]. Ordnance Material Science and Engineering, 2010, 33(1): 89–90. DOI: 10.14024/j.cnki.1004-244x.2010.01.034.
[6]	王建波, 闫慧敏, 范秉源, 等. 弹着点对多孔钢板抗弹性能影响的数值模拟 [J]. 兵器材料科学与工程, 2010, 33(6): 73–75. DOI: 10.14024/j.cnki.1004-244x.2010.06.038. WANG J B, YAN H M, FAN B Y, et al. Numerical simulation analysis about the influence of the hitting position on the ballistic performance of the multi-hole steel plate [J]. Ordnance Material Science and Engineering, 2010, 33(6): 73–75. DOI: 10.14024/j.cnki.1004-244x.2010.06.038.
[7]	李换芝. 倾角穿孔装甲对14.5 mm穿燃弹防护性能的影响 [J]. 科技创新与生产, 2016(2): 90–91; 94. DOI: 10.3969/j.issn.1674-9146.2016.02.090. LI H Z. Influence of oblique perforated armor on the protective performance of the 14.5 mm armor-piercing incendiary [J]. Sci-tech Innovation and Productivity, 2016(2): 90–91; 94. DOI: 10.3969/j.issn.1674-9146.2016.02.090.
[8]	秦庆华, 崔天宁, 施前, 等. 孔结构金属装甲抗弹能力的数值模拟 [J]. 高压物理学报, 2018, 32(5): 055105. DOI: 10.11858/gywlxb.20180530. QIN Q H, CUI T N, SHI Q, et al. Numerical study on ballistic resistance of metal perforated armor to projectile impact [J]. Chinese Journal of High Pressure Physics, 2018, 32(5): 055105. DOI: 10.11858/gywlxb.20180530.
[9]	李海亮, 贾德昌, 杨治华, 等. 选区激光熔化3D打印钛合金及其复合材料研究进展 [J]. 材料科学与工艺, 2019, 27(2): 1–15. DOI: 10.11951/j.issn.1005-0299.20180110. LI H L, JIA D C, YANG Z H, et al. Research progress on selective laser melting 3D printing of titanium alloys and titanium matrix composite [J]. Materials Science and Technology, 2019, 27(2): 1–15. DOI: 10.11951/j.issn.1005-0299.20180110.
[10]	MA C L, GU D D, LIN K J, et al. Selective laser melting additive manufacturing of cancer pagurus’s claw inspired bionic structures with high strength and toughness [J]. Applied Surface Science, 2019, 469: 647–656. DOI: 10.1016/j.apsusc.2018.11.026.
[11]	JOHNSON G R, COOK W H. A constitutive model and data for metals subjected to large strains, high strain rates and high temperatures[C]//Proceedings of the 7th International Symposium on Ballistics. The Hague, The Netherlands, 1983: 541-547.
[12]	JOHNSON G R, COOK W H. Fracture characteristics of three metals subjected to various strains, strain rates, temperatures and pressures [J]. Engineering Fracture Mechanics, 1985, 21(1): 31–48. DOI: 10.1016/0013-7944(85)90052-9.
[13]	高华, 熊超, 殷军辉, 等. 多层异质陶瓷复合靶板抗侵彻试验及数值模拟 [J]. 火炮发射与控制学报, 2019, 40(1): 89–93; 98. DOI: 10.19323/j.issn.1673-6524.2019.01.018. GAO H, XIONG C, YIN J H, et al. Anti-penetration test and numerical simulation of multilayer heterogeneous ceramic composite target [J]. Journal of Gun Launch and Control, 2019, 40(1): 89–93; 98. DOI: 10.19323/j.issn.1673-6524.2019.01.018.
[14]	IQBAL M A, SENTHIL K, SHARMA P, et al. An investigation of the constitutive behavior of Armox 500T steel and armor piercing incendiary projectile material [J]. International Journal of Impact Engineering, 2016, 96: 146–164. DOI: 10.1016/j.ijimpeng.2016.05.017.
[15]	苗成, 刘江南, 钟涛, 等. 钛合金板抗12.7 mm穿甲燃烧弹厚度效应试验研究 [J]. 兵器材料科学与工程, 2012, 35(5): 68–70. DOI: 10.14024/j.cnki.1004-244x.2012.05.005. MIAO C, LIU J N, ZHONG T, et al. Thickness effect of titanium alloy plates against 12.7 mm API [J]. Ordnance Material Science and Engineering, 2012, 35(5): 68–70. DOI: 10.14024/j.cnki.1004-244x.2012.05.005.