不同材料弹体超声速侵彻钢筋混凝土靶的结构破坏对比实验

周忠彬; 马田; 赵永刚; 李继东; 周涛; 李鹏

doi:10.11858/gywlxb.20190841

不同材料弹体超声速侵彻钢筋混凝土靶的结构破坏对比实验

doi: 10.11858/gywlxb.20190841

周忠彬^1,*, ,,
马田¹,
赵永刚¹,
李继东²,
周涛¹,
李鹏²

1.
西安近代化学研究所，陕西西安　710065
2.
火箭军驻西安地区第五军事代表室，陕西西安　710065

详细信息

通讯作者:
周忠彬（1984－），男，博士，高级工程师，主要从事战斗部总体设计及毁伤威力评估研究. E-mail: zhouzb3002@126.com

中图分类号: O347.1; O385
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出版历程
- 收稿日期: 2019-10-08
- 修回日期: 2019-11-04

Comparative Experiment on Structural Damage of Supersonic Projectiles with Different Metal Materials Penetrating into Reinforced Concrete Targets

1.
Xi’an Modern Chemistry Research Institute, Xi’an 710065, Shaanxi, China
2.
Fifth Military Representative Office of Rocket Force in Xi’an, Xi’an 710065, Shaanxi, China

摘要

摘要: 设计了超声速钻地结构弹，采用203 mm口径的火炮，开展了25 kg量级弹体在1 100～1 300 m/s速度范围内侵彻钢筋混凝土靶的实验研究，应用数值仿真对弹体侵彻钢筋混凝土靶的过程进行了模拟计算。基于实验和仿真结果，对超声速侵彻条件下两种金属材料弹体的结构响应、质量损失等问题进行了分析。结果表明：在超声速侵彻钢筋混凝土靶的过程中，两种金属材料的弹体结构变形破坏形式主要为头部侵蚀和侧壁磨蚀，头部侵蚀量的大小与弹体壳体材料有关，高强度G50钢材料更适合用于1 200 m/s速度量级的超声速侵彻环境。对出现的“径缩”现象作了初步分析，并对今后工程应用的结构弹体设计提出了指导意见。
- 超声速 /
- 侵彻 /
- 钢筋混凝土靶 /
- 结构破坏
Abstract: A supersonic earth-penetrating projectile is designed where two different metal materials are used for the projectile’s body. Experiments of projectiles with mass of 25 kg and impact velocity ranging from 1 100 m/s to 1 300 m/s are implemented by a cannon with caliber of 203 mm. The process of projectile penetrating into the reinforced concrete target is simulated based on a numerical method. Based on the experimental and simulation results, the projectile’s structural response and mass loss in supersonic condition were investigated. The results show that the two damage modes of projectile with different metal materials in supersonic penetration condition are head eroding and wall friction corrosion. The degree of damage and the head erosion amount are related to the metal materials of projectiles. The G50 metal with high-strength is appropriate to be used for the projectile body in supersonic penetration with impact velocity of 1 200 m/s. The phenomenon of diameter shrinkage is analyzed, and some suggestions are put forward for the design of projectile body structure in future engineering application.
- supersonic /
- penetration /
- reinforced concrete target /
- structure damage

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图 1 实验弹结构和实物图

Figure 1. Schematic diagram and image of the projectile

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图 2 实验钢筋混凝土靶

Figure 2. Reinforced concrete targets used in the experiment

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图 3 实验布局

Figure 3. Experimental layout

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图 4 30CrMnSiNi2MoVE钢材料实验弹侵彻后靶标的破坏结果

Figure 4. Destruction results of targets penetrated by experimental projectile of 30CrMnSiNi2MoVE metal material

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图 5 G50钢材料实验弹侵彻后靶标的破坏结果

Figure 5. Destruction results of targets penetrated by experimental projectile of G50 metal material

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图 6 实验前后弹体外观比较

Figure 6. Appearances comparison of projectiles before and after experiment

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图 7 回收弹体头部侵蚀破坏

Figure 7. Erosion damage of the head of recycled projectile

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图 8 弹体模型

Figure 8. Simulation model of projectile

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图 9 侵彻能力计算结果

Figure 9. Calculation result of penetration capability

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图 10 过载随时间变化曲线

Figure 10. Overload-time curve

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图 11 壳体塑性变形

Figure 11. Plastic deformation of projectile’s body

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表 1 金属材料力学性能

Table 1. Mechanical properties of metal materials

Material	ρ/（g·cm^–3）	σ_b/MPa	σ_s/MPa	K_IC/(MPa·m^1/2)
30CrMnSiNi2A	7.80	1 690	1 300	86
35CrMnSiA	7.80	1 670	1 310	57
G50	7.76	1 740	1 440	105
30CrMnSiNi2MoVE	7.80	1 640	1 360	112

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表 2 实验回收弹体测量结果

Table 2. Measuring results of recycled projectile

Projectile No.	m/kg		L/mm		D/mm		Mass loss/%	Length change/%	Outside diameter change/%
Projectile No.	Before exp.	After exp.	Before exp.	After exp.	Before exp.	After exp.	Mass loss/%	Length change/%	Outside diameter change/%
1^#	20.53	19.16	900	814.6	150	149.2	6.7	10.5	0.54
2^#	20.49	19.07	900	824.5	150	149.6	6.9	9.2	0.27
3^#	20.51	19.77	900	851.7	150	149.5	3.7	5.7	0.33
4^#	20.49	19.73	900	862.4	150	149.3	3.9	4.4	0.47

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