活性PELE侵彻钢筋混凝土毁伤效应仿真研究

doi:10.12382/bgxb.2024.0527

摘要/Abstract

摘要：

为研究活性横向效应增强弹(Penetrator with Enhanced Lateral Effect,PELE)对钢筋混凝土靶的冲击爆燃毁伤效应,采用有限元分析软件对活性PELE毁伤钢筋混凝土靶作用行为进行数值仿真研究。基于点火增长模型,建立可描述活性芯体冲击反应过程的数值仿真模型,并根据弹道驱动试验结果对数值仿真模型进行有效性校验,计算结果与试验结果吻合较好。在此基础上开展不同冲击速度和壳体厚度条件下活性PELE对钢筋混凝土靶的毁伤特性研究。研究结果表明,随着冲击速度的提高和壳体厚度的增加,混凝土靶通孔尺寸呈先增大后减小的趋势,而对于崩落尺寸,弹丸的冲击速度则是主要影响因素。

关键词: 横向效应增强弹, 点火增长, 活性毁伤材料, 冲击反应

Abstract:

The impact/deflagration-induced damage effect of reactive penetrator with enhanced lateral effect (PELE) on reinforced concrete target is studied by using the finite element analysis software to simulate the behaviors of PELE acting on a reinforced concrete target. A numerical simulation model for describing the impact response process of the reactive materials core is established based on the ignition growth model. The validity of the numerical simulation model is verified according to the test results of a ballistic gun. The calculated results of the simulation model are in good agreement with the test results. On this basis, the damage characteristics of active PELEs against the reinforced concrete targets under the conditions of different impact velocities and shell thicknesses are studied. The results show that the through-hole size of reinforced concrete target increases at first and then decreases with the increase in impact velocity and shell thickness, while for the collapse size, the impact velocity of projectile is the main influencing factor.

Key words: penetrator with enhanced lateral effect, initiation growth, reactive damage material, shock-induced reaction

中图分类号:

TJ012.4

郭萌萌, 王海福, 张甲浩, 周晟, 余庆波. 活性PELE侵彻钢筋混凝土毁伤效应仿真研究[J]. 兵工学报, 2024, 45(S1): 89-96.

GUO Mengmeng, WANG Haifu, ZHANG Jiahao, ZHOU Sheng, YU Qingbo. Simulation Research on Damage Effect of PELE Penetrating Reinforced Concrete[J]. Acta Armamentarii, 2024, 45(S1): 89-96.

图/表 16

图1 活性PELE结构

Fig.1 Reactive PELE structure

图2 钢筋混凝土靶板结构

Fig.2 Reinforced concrete target plate structure

图3 数值仿真模型

Fig.3 Simulation model

表1 Johnson-Cook模型参数

Table 1 Johnson-Cook model parameters

参数	4340钢	钨合金	Q345钢
ρ	7.85	17.3	7.83
E	2.1	3.24	2.1
A	1.327	1.342	0.389
B	1.186	0.351	0.565
n	0.0034	0.25	0.42
c	0.017	0.018	0.026
m	1.27	0.59	1.0
T_r/K	293	293	293
T_m/K	1775	1850	1793

表2 IGNITION_ANG_GROWTH状态方程参数[20]

Table 2 IGNITION_ANG_GROWTH of EOS of reactive materials[20]

参数	数值	参数	数值
a	4.735 5×10⁵	CCRIT	1×10^-6
b	30.620 3	EETAL	28.399
r₁	2.293 712	GROW₁	5.4521×10⁹
r₂	2.009 256	GROW₂	8.599×10¹³
r₃	7.709 9×10^-5	ES₁	1.002 9
r₅	45.292 294	ES₂	1.000 2
r₆	51.545 380	AR₁	0
g	4.575 4×10^-6	AR₂	6.306 7×10^-5
C_v_r	9.93×10^-6	EM	16.735 001
xp₁	50.466 801	EN	26.963
xp₂	4.927 37	fmxig	0
C_v_p	1.457×10^-5	enq	0.013 5
FREQ	11 224	tmp₀	0
FRER	1.727 1

表3 RHT模型参数[21]

Table 3 RHT strength model parameters[21]

ρ	SHEAR	F_c	F_T	F_S	A	N
2.3	0.153	0.000167	0.08	0	1.6	0.61

图4 典型数值模拟结果

Fig.4 Typical simulated results

图5 混凝土靶板毁伤情况

Fig.5 Damage to reinforced concrete target

图6 试验原理

Fig.6 Test principle

图7 活性PELE作用混凝土靶冲击反应过程高速摄影

Fig.7 High-speed photography of reaction process of reactive PELE impacting reinforced concrete targets

图8 钢筋混凝土靶毁伤情况

Fig.8 Damage to reinforced concrete targets

表4 混凝土靶毁伤情况

Table 4 Damage to reinforced concrete targets

表5 不同冲击速度条件下的靶板毁伤情况

Table 5 Damage to reinforced concrete targets at different velocities

图9 不同冲击速度下的通孔尺寸

Fig.9 Through-hole sizes at different impact speeds

图10 不同壳体厚度下的通孔尺寸

Fig.10 Through-hole sizees under different shell thickness

表6 不同壳体厚度条件下的靶板毁伤情况

Table 6 Damage to reinforced concrete targets with different shell thicknesses

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