前置组合杆体垂直侵彻钢靶简化模型

吴群彪; 沈培辉; 方海峰; 范纪华; 蔡李花

doi:10.11883/bzycj-2017-0287

前置组合杆体垂直侵彻钢靶简化模型

doi: 10.11883/bzycj-2017-0287

1.
江苏科技大学苏州理工学院, 江苏张家港 215600
2.
南京理工大学智能弹药国防重点学科实验室, 江苏南京 210094

基金项目:

国家自然科学基金 11502098

江苏省高校自然科学研究面上项目 15KJB130003

江苏省高校自然科学研究面上项目 16KJD130001

详细信息

作者简介:
吴群彪(1986-), 男, 博士, 讲师, just_wqb@163.com

中图分类号: O383
计量
- 文章访问数: 4583
- HTML全文浏览量: 1602
- PDF下载量: 56
- 被引次数: 0
出版历程
- 收稿日期: 2017-08-10
- 修回日期: 2017-10-24
- 刊出日期: 2019-01-25

Simplified model of pre-composited rod's normal penetration into steel target

1.
Suzhou Institute of Technology, Jiangsu University of Science and Technology, Zhangjiagang 215600, Jiangsu, China
2.
ZNDY Ministerial Key Laboratory, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

摘要

摘要: 针对均质长杆体侵彻能力提高陷入瓶颈的问题，设计了由高密度钨合金和高硬度碳化钨组合的新型前置组合杆体。通过试验和数值模拟验证，前置组合杆体能利用材料的不同性能，在稳定侵彻阶段形成更尖锐头部形状，从而提高侵彻能力。根据试验和数值模拟结果，描述了前置组合杆体垂直侵彻钢靶的物理图像，将前置组合杆体侵彻划分为开坑段、组杆段和单杆段三部分，分别建立其各自侵彻阶段的理论模型，最终得到前置组合杆体总侵彻深度计算模型。通过与试验和数值模拟结果对比，验证了该模型的合理性。
- 高密度钨合金 /
- 高硬度碳化钨 /
- 前置组合杆体 /
- 侵彻能力
Abstract: In this study, to improve the penetration capability of the homogeneous long rod, a problem whose solution has hit a bottleneck, we designed a new pre-composited rod fabricated with high density tungsten alloy and high hardness tungsten carbide. It was validated through experiment and numerical simulation that our newly-designed rod can form a sharp nose shape in the steady penetration stage by cashing in on the different properties of different materials to improve the penetration capability of the long rod. Based on the experimental and simulated results, we presented a full description of the physical image of the pre-composited rod's normal penetration into a steel target, which can be divided into three sections, those of the cratering, the composited rod, and the homogeneous rod, with their theoretical models established respectively, thus obtaining the calculation model of the total pre-composited rod's penetration depth. The rationality of the model was verified by comparing it with the experiment and simulation results. The conclusions from our study are helpful for the kinetic design of weapons using the new long rod.
- high-density tungsten alloy /
- high-hardness tungsten carbide /
- pre-composited rod /
- penetration capability

HTML全文

图 1 前置组合杆体示意图

Figure 1. Schematic of pre-composited rod

下载: 全尺寸图片幻灯片

图 2 试验布置示意图

Figure 2. Schematic of test layout

下载: 全尺寸图片幻灯片

图 3 试验结果

Figure 3. Experimental results

下载: 全尺寸图片幻灯片

图 4 前置组合杆体侵彻钢靶有限元模型

Figure 4. Finite element model of pre-composited rod penetrating target

下载: 全尺寸图片幻灯片

图 5 前置组合杆体侵彻钢靶有限元模型

Figure 5. Finite element model of pre-composited rod penetrating target

下载: 全尺寸图片幻灯片

图 6 不同配置前置组合杆体侵彻规律

Figure 6. Penetration laws of pre-composited rods with different configurations

下载: 全尺寸图片幻灯片

图 7 前置组合杆体的三段划分

Figure 7. Pre-composited rod's three divisions

下载: 全尺寸图片幻灯片

图 8 前置组合杆体运动变化图

Figure 8. Motion and variation of pre-composited rod

下载: 全尺寸图片幻灯片

图 9 前置组合杆体组合段杆长变化图

Figure 9. Variation of pre-composited rod's length

下载: 全尺寸图片幻灯片

图 10 前置组合杆体1的组杆段侵彻头形图

Figure 10. Nose shape of pre-composited rod 1 in penetration

下载: 全尺寸图片幻灯片

图 11 前置组合杆体的组杆段头部形状图

Figure 11. Nose shape of pre-composited rod

下载: 全尺寸图片幻灯片

图 12 后段单杆段侵彻时杆体头形图

Figure 12. Nose shape of post homogenous rod in penetration

下载: 全尺寸图片幻灯片

图 13 前置组合杆体2的组杆段侵彻头形图

Figure 13. Nose shape of pre-composited rod 2 in penetration

下载: 全尺寸图片幻灯片

图 14 前置组合杆体3的组杆段侵彻头形图

Figure 14. Nose shape of pre-composted rod 3 in penetration

下载: 全尺寸图片幻灯片

表 1 不同配置的前置组合杆体

Table 1. Different configurations of pre-composited rods

杆结构	小杆体直径d₂/mm	小杆体长度H₁/mm
均质杆	0	0
前置组合杆体1	1.5	25
前置组合杆体2	2.5	30
前置组合杆体3	5.5	30

下载: 导出CSV

表 2 不同配置的前置组合杆体

Table 2. Different configurations of pre-composited rods

材料	ρ/(g·cm^-3)	G/GPa	σ_y/MPa	γ
93钨	17.6	136	1 506	1.54
碳化钨	14.7	254	5 100	1.50
45钢	7.85	77	700	2.17

下载: 导出CSV

表 3 两组杆体头部形状图

Table 3. Nose shape of two rods

杆结构	v/(m·s^-1)	h/mm		ε/%
杆结构	v/(m·s^-1)	试验	数值模拟	ε/%
均质杆	1 356	84.0	81.5	2.98
前置组合杆体1	1 310	83.0	77.7	6.39
前置组合杆体2	1 320	84.0	80.9	3.70
前置组合杆体3	1 200	78.0	76.2	2.31

下载: 导出CSV

表 4 侵彻过程中各阶段的速度变化和侵彻深度

Table 4. Velocity variation and penetration depth in different stages of penetration process

杆结构	开坑段			前置组杆段			单杆段
杆结构	v₀/(m·s^-1)	v₁/(m·s^-1)	x₁/mm	v₁/(m·s^-1)	v₂/(m·s^-1)	x₂/mm	v₂/(m·s^-1)	v₃/(m·s^-1)	x₃/mm
均质杆	1 356	1 342.0	11.0				1 342.0	0	71.2
前置组合杆体1	1 310	1 295.5	10.9	1 295.5	1 257.9	22.0	1 257.9	0	50.0
前置组合杆体2	1 320	1 305.7	10.9	1 305.7	1 251.3	29.8	1 251.3	0	46.1
前置组合杆体3	1 200	1 184.2	10.6	1 184.2	1 096.4	27.3	1 096.4	0	42.6

下载: 导出CSV

表 5 不同初速度下侵彻深度理论和试验对比

Table 5. Comparison of penetration depth between theory and test at different initial velocities

杆结构	v₀/(m·s^-1)	侵彻深度		ε/%
杆结构	v₀/(m·s^-1)	理论计算(x₁+x₂+x₃)/mm	试验h/mm	ε/%
均质杆	1 356	82.2	84	2.14
前置组合杆体1	1 310	82.9	83	0.12
前置组合杆体2	1 320	86.8	84	3.33
前置组合杆体3	1 200	80.5	78	3.21

下载: 导出CSV

表 6 不同杆结构侵彻深度数值模拟和理论对比

Table 6. Comparison of penetration depth between simulation and theory with different rod structures

H₁/mm	侵彻深度		ε/%
H₁/mm	数值模拟h/mm	理论计算(x₁+x₂+x₃)/mm	ε/%
0	74.5	77.7	4.23
30	78.0	83.4	6.92
50	80.5	85.4	6.09
70	84.0	88.5	5.36
90	85.0	90.0	5.88

下载: 导出CSV

参考文献(11)

[1]	FORRESTAL M J, LUK V K. Dynamic spherical cavity-expansion in a compressible elastic-plastic solid[J]. Journal of Applied Mechanics, 1988, 55(2):275-279. DOI: 10.1115/1.3173672.
[2]	ROSENBERG Z, DEKEL E. On the role of nose profile in long-rod penetration[J]. International Journal of Impact Engineering, 1999, 22(5):551-557. DOI: 10.1016/S0734-743X(98)00054-2.
[3]	JONES S E, RULE W K. On the optimal nose geometry for a rigid penetrator, including the effects of pressure-dependent friction[J]. International Journal of Impact Engineering, 2000, 24(4):403-415. DOI: 10.1016/S0734-743X(99)00157-8.
[4]	JONES S E, RULE W K, JEROME D M, et al. On the optimal nose geometry for a rigid penetrator[J]. Computational Mechanics, 1998, 22(5):413-417. DOI: 10.1007/s004660050373.
[5]	CHEN X W, LI Q M. Deep penetration of a non-deformable projectile with different geometrical characteristics[J]. International Journal of Impact Engineering, 2002, 27(6):619-637. DOI: 10.1016/S0734-743X(02)00005-2.
[6]	LI Q M, CHEN X W. Dimensionless formulae for penetration depth of concrete target impacted by a non-deformable projectile[J]. International Journal of Impact Engineering, 2003, 28(1):93-116.DOI: 10.1016/S0734-743X(02)00037-4.
[7]	CHIAN S C, TAN B C V, SARMA A. Projectile penetration into sand:Relative density of sand and projectile nose shape and mass[J]. International Journal of Impact Engineering, 2017, 103:29-37.DOI: 10.1016/j.ijimpeng.2017.01.002.
[8]	程兴旺, 王富耻, 李树奎, 等.不同头部形状长杆弹侵彻过程的数值模拟[J].兵工学报, 2007, 28(8):930-933. DOI: 10.3321/j.issn:1000-1093.2007.08.007. CHENG Xingwang, WANG Fuchi, LI Shukui, et al. Numerical simulation on the penetrations of long-rod projectiles with different nose shapes[J]. Acta Armamentarii, 2007, 28(8):930-933. DOI: 10.3321/j.issn:1000-1093.2007.08.007.
[9]	高光发, 李永池, 黄瑞源, 等.杆弹头部形状对侵彻行为的影响及其机制[J].弹箭与制导学报, 2012, 32(6):51-54. DOI: 10.3969/j.issn.1673-9728.2012.06.015. GAO Guangfa, LI Yongchi, HUANG Ruiyuan, et al. Effect of nose shape on penetration performance of long-rod penetrator and its mechanism[J]. Journal of Projectiles, Rockets, Missiles and Guidance, 2012, 32(6):51-54. DOI: 10.3969/j.issn.1673-9728.2012.06.015.
[10]	孙庚辰, 吴锦云, 赵国志, 等.长杆弹垂直侵彻半无限厚靶板的简化模型[J].兵工学报, 1981(4):1-8. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK000005146030 SUN Gengchen, WU Jinyun, ZHAO Guozhi, et al. A simplified model of the penetration of the long-rod penetrator against the plated with semi-infinite thickness at normal angle[J]. Acta Armamentarii, 1981(4):1-8. http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=QK000005146030
[11]	吴群彪, 沈培辉, 刘荣忠, 等.长杆体稳定侵彻阶段头部形状的侵彻效率分析[J].兵器材料科学与工程, 2014, 37(3):80-83.DOI: 10.3969/j.issn.1004-244X.2014.03.023. WU Qunbiao, SHEN Peihui, LIU Rongzhong, et al. Long rod penetration efficiency analysis of nose shape at quasi-steady penetration stage[J]. Ordnance Material Science and Engineering, 2014, 37(3):80-83. DOI: 10.3969/j.issn.1004-244X.2014.03.023.