基于复合面/背板的平板装药防护性能

李如江; 柴艳军; 韩宏伟; 刘天生

doi:10.11883/1001-1455(2017)04-0637-06

基于复合面/背板的平板装药防护性能

doi: 10.11883/1001-1455(2017)04-0637-06

1.
中北大学安全工程系，山西太原 030051
2.
兵器工业第52研究所冲击环境材料技术重点试验室，山东烟台 264003

详细信息

作者简介:
李如江(1978-)，男，博士，副教授，lirujiang3002@sina.com

中图分类号: O385
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出版历程
- 收稿日期: 2015-12-21
- 修回日期: 2016-06-02
- 刊出日期: 2017-07-25

Protective performance of explosive reactive armor with composite rubber armor as front or back plate

1.
Department of Safety Engineering, North University of China, Taiyuan 030051, Shanxi, China
2.
Science and Technology on Materials in Impact Environment Laboratory, NO.52 Institute of Armament Industry, Yantai 264003, Shandong, China

摘要

摘要: 采用实验和数值模拟方法研究了橡胶复合板作为爆炸反应装甲面、背板时的防护性能，分析了两种反应装甲结构的防护机理，并与面密度相同的钢反应装甲进行了对比。实验结果表明：爆炸反应装甲面板或背板为橡胶复合板时的防护性能优于钢反应装甲，其中橡胶复合板作为背板时效果最优。数值模拟结果表明：橡胶复合板在爆炸驱动下外层钢板速度相比于钢反应装甲飞板提高16%，橡胶复合板的界面效应及其飞板间隙可以有效减小逃逸射流的长度。
- 爆炸反应装甲 /
- 聚能装药 /
- 防护性能
Abstract: The protection performance and mechanism of explosive reactive armors (ERA) with composite rubber armor as its front or back plate were investigated using experiments and numerical simulation, and the results were examined in comparison with ERA using conventional steel plates of the same area density. The experimental results show that the protection performance of ERA with composite rubber armor as the front or back plates are superior to that of the ERA with steel plates, and the optimal performance is achieved when the rubber composite armor is used as the back plate. The numerical simulation results show that the back plate velocity of the composite rubber armor is 16% higher than that of the ERA with steel plates, the space between the two moving plates of the composite rubber armor and the boundary effect contribute significantly to reducing the length of the escaping shaped charge jet.
- explosive reactive armors (ERA) /
- shaped charge /
- protection performance

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图 1 3种反应装甲结构

Figure 1. Three ERA structures

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图 2 聚能装药对反应装甲作用的实验布置示意图

Figure 2. Experimental scheme of shaped charge and ERA

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图 3 典型时刻的X射线实验照片

Figure 3. X-ray photographs at t = 46 μs

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图 4 后效靶穿深实验结果照片

Figure 4. Experimenal pictures of DOP results

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图 5 射流与3种结构的反应装甲在典型时刻的作用形态

Figure 5. Results of interaction between jet and three structures of ERA at different times

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图 6 飞板速度计算结果

Figure 6. Calculated plate velocities

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表 1 实验结果

Table 1. Experimental results of penetration

装甲结构	开坑尺寸/(mm×mm)	开坑深度/mm
结构(a)	7×11	9
结构(b)	6×11	11
结构(c)	6×7	6

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表 2 炸药计算参数

Table 2. Computational parameters for JH-2 and Comp.B

炸药	ρ/(g·cm^-3)	D/(m·s^-1)	A/GPa	B/GPa	R₁	R₂	ω
JH-2	1.685	8 130	625.3	23.29	5.25	1.6	0.28
Comp. B	1.715	7 980	524.2	7.77	4.2	1.1	0.50

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表 3 Lee-Tarver反应模型参数

Table 3. Computational parameters for Lee-Tarver model

I/s^-1	b	a	x	G₁/GPa	c	d	y	G₂/GPa	e	g	z
4.4×10¹⁷	0.667	0	20	310	0.667	0.111	1.0	400	0.333	1.0	2.0

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表 4 紫铜和Q235钢材料的本构方程计算参数

Table 4. Computational parameters for copper and Q235 steel

材料	ρ/(g·cm^-3)	A₁/GPa	B₁/GPa	n	C₁	m	c₀/(km·s^-1)	s	Γ₀
Q235	7.85	0.792	0.51	0.26	0.014	1.03	4.57	1.33	1.67
Cu	8.96	0.090	0.29	0.31	0.025	1.09	3.94	1.49	1.99

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表 5 橡胶夹层和聚能壳体材料参数

Table 5. Computational parameters for rubber interlayer and polymer shell

材料	ρ/(g·cm^-3)	c₀/(m·s^-1)	s	Γ₀	σ_b/MPa	ε/%
橡胶	1.01	852	1.865	1.5	20	400
Teflon	2.15	1 680	1.82	0.59	30	450

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参考文献(12)

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