弹体高速侵彻钢筋混凝土靶试验研究

王可慧; 周刚; 李明; 邹慧辉; 吴海军; 耿宝刚; 段建; 戴湘晖; 沈子楷; 李鹏杰; 古仁红

doi:10.11883/bzycj-2020-0463

弹体高速侵彻钢筋混凝土靶试验研究

doi: 10.11883/bzycj-2020-0463

西北核技术研究所，陕西西安 710024

详细信息

作者简介:
王可慧（1975－　），女，博士，研究员，wangkehui@nint.ac.cn

通讯作者:
周　刚（1962－　），男，博士，研究员，gzhou@nint.ac.cn

中图分类号: O385
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- 被引次数: 0
出版历程
- 收稿日期: 2020-10-15
- 修回日期: 2021-06-17
- 网络出版日期: 2021-11-08
- 刊出日期: 2021-11-23

Experimental research on the mechanism of a high-velocity projectile penetrating into a reinforced concrete target

Northwest Institute of Nuclear Technology, Xi’an 710024, Shaanxi, China

摘要

摘要: 为研究结构弹体对钢筋混凝土靶的高速侵彻破坏效应，利用口径35 mm弹道炮开展了1 030～1 520 m/s速度范围内的高速侵彻试验，获得了弹体的撞击速度、破坏形态、剩余长度、剩余质量和靶体中的侵彻深度及成坑尺寸等试验数据，分析了侵彻深度和侵彻机理随速度的变化关系。结果表明：在1 030～1 390 m/s的速度范围内，弹体头部磨蚀，磨蚀程度随侵彻速度增加而加剧，侵彻深度随撞击速度近似线性增大；撞击速度在1 390～1 480 m/s范围内，弹体头部严重磨蚀，侵彻深度随撞击速度增加而减小；撞击速度大于1 480 m/s后，弹体严重破碎，侵彻深度急剧下降。针对结构弹体高速侵彻过程中的破坏特点，将侵彻速度划分为刚体侵彻区、准刚体侵彻区、侵蚀体侵彻区和破碎体侵彻区，可为钻地弹结构设计提供参考。
- 结构弹体 /
- 高速侵彻 /
- 钢筋混凝土 /
- 结构响应 /
- 速度分区
Abstract: In order to study the high-speed penetration effect of a structural projectile on a reinforced concrete target, tests of structural projectiles with high velocity penetrating into reinforced concrete target were carried out by using a 35mm-caliber ballistic gun as a launching tool, and the penetration velocity of the projectiles ranges from 1030 m/s to 1520 m/s. The test data of the deformation and failure form, remaining length and remaining mass of the projectiles were obtained through detailed measurement of the recovered projectile. The macro-damage of the targets, the penetration depth and crater size of the target bodies were also obtained. Based on the experimental data, the changes of the projectile structure response, penetration of the dimensionless crater depth, and dimensionless crater diameter with penetration velocity were analyzed. According to the deformation and destruction of the projectiles during the penetration process, the penetration depth and penetration mechanism change with penetration velocity were analyzed, and the partition of the penetration velocity was discussed. The results show that, in the penetration velocity ranges from 1030 m/s to 1390 m/s, the heads of the projectiles are eroded, and the degree of erosion increases with the increase in penetration velocity, and the penetration depth increases approximately linearly with the penetration velocity. When the penetration velocity is in the range of 1390−1480 m/s, the heads of the projectiles are severely eroded, and the penetration depth decreases as the penetration velocity increases. When the impact velocity is higher than 1480 m/s, the projectile bodies are severely broken, and the penetration depth decreases sharply as the penetration velocity increases. According to the damage characteristics of the structural projectiles during high-speed penetration, the penetration velocity is divided into rigid body penetration zone, quasi-rigid body penetration zone, eroded body penetration zone and broken body penetration zone, which can provide a reference for the structural design of ground-penetrating projectile.
- structural projectile /
- high-velocity penetration /
- reinforced concrete target /
- experimental research /
- velocity partition

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图 1 弹体

Figure 1. Projectile

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图 2 钢筋混凝土靶

Figure 2. Reinforced concrete target

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图 3 试验系统

Figure 3. Test set up

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图 4 试验后弹体破坏情况

Figure 4. Residual projectiles after penetration

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图 5 靶体典型破坏形态

Figure 5. Damage results of reinforced concrete targets

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图 6 弹体长度损失率对比

Figure 6. Comparison of length loss ratio of projectiles

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图 7 弹体质量损失率对比

Figure 7. Comparison of mass loss ratio of projectiles

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图 8 无量纲弹坑深度（H₁/D）随撞击速度的变化规律

Figure 8. Variation of dimensionless crater depth (H₁/D) with impact velocity

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图 9 无量纲弹坑直径（D₁/D）随撞击速度的变化规律

Figure 9. Variation of dimensionless crater diameter (D₁/D) with impact velocity

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图 10 侵彻深度随撞击速度的变化关系

Figure 10. Variation of penetration depth with impact velocity

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图 11 结构弹的侵彻速度分区

Figure 11. Partition of penetration speed for structural projectiles

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表 1 侵彻试验结果

Table 1. Penetration test results

工况	速度/ （m·s⁻¹）	侵深/ mm	开坑深度/ mm	剥落区面积/mm	剩余弹体长度/mm	剩余弹体质量/g
1	1 030	455	69	230×230	96.6	130.5
2	1 210	595	70	300×310	94.3	127.4
3	1 352	698	73	290×280	91.7	122.4
4	1 390	741	75	300×290	89.8	126.2
5	1 438	674	90	300×320	90.7	127.8
6	1 463	730	70	310×330	89.7	125.4
7	1 480	310	80	350×300	0.0	0.0
8	1 505	270	95	330×330	0.0	0.0
9	1 520	267	92	300×330	0.0	0.0
注：工况7、8、9的弹体完全破碎，可认为此时弹体的有效长度和有效　　质量均为零。

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