分层地质类材料靶体抗超高速侵彻模型实验

程怡豪; 邓国强; 李干; 宋春明; 邱艳宇; 张中威; 王德荣; 王明洋

doi:10.11883/bzycj-2018-0230

分层地质类材料靶体抗超高速侵彻模型实验

doi: 10.11883/bzycj-2018-0230

程怡豪^1,,
邓国强²,
李干^{1, 3, ,},
宋春明¹,
邱艳宇^{1, 3},
张中威¹,
王德荣¹,
王明洋^{1, 3}

1.
陆军工程大学爆炸冲击防灾减灾国家重点实验室，江苏南京 210007
2.
军事科学院国防工程研究院，北京 100850
3.
南京理工大学机械工程学院，江苏南京 210094

基金项目: 国家自然科学基金（51409258，11602303，11772355，2017M621752）；教育部长江学者和创新团队发展计划（IRT13071）

详细信息

作者简介:
程怡豪（1986－　），男，博士，讲师，05105432@163.com

通讯作者:
李　干（1985－　），男，博士，讲师，ligan1205@163.com

中图分类号: O347
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- 被引次数: 1
出版历程
- 网络出版日期: 2019-06-25
- 刊出日期: 2019-07-01

Model experiments on penetration of layered geological material targets by hypervelocity rob projectiles

1.
State Key Laboratory of Disaster Prevention and Mitigation of Explosive and Impact, Army Engineering University of PLA, Nanjing 210007, Jiangsu, China
2.
National Defence Research Institute, Military Academy of Sciences, Beijing 100850, China
3.
School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, Jiangsu, China

摘要

摘要: 利用二级轻气炮开展了杆形钢弹在10马赫左右条件下对4种分层地质类材料靶体的超高速侵彻模型实验，重点研究了砂浆层位置和空气隔层对侵彻效应的影响。结果表明增加遮弹层与下部结构间的空气隔层、在整个结构顶部设置疏松砂浆层均可以在一定条件下加剧弹体破坏、减小结构层的侵彻深度，但同时会增加遮弹层的表面成坑效应。从减小结构层的侵彻深度出发，“软-硬-软-硬”的分层设计思路对抵抗超高速弹体侵彻是可行的。
- 超高速侵彻 /
- 模型实验 /
- 分层地质类材料靶体 /
- 优化配置
Abstract: Model experiments of hypervelocity penetration of steel rods at about Mach 10 into four types of layered geological material targets were conducted with a two-stage light gas gun, and the effects of the mortar position and the air-layer set on penetration were emphasized. The results show that, under certain conditions, both adding an air layer between the shielding layer and the lower structure layer and setting a mortar layer at the upper surface of the whole structure can promote the projectiles broken, decrease the penetration depth into the structural layer, but in the mean time intensify the cratering effect of the shielding layer. For reducing the penetration depth of the structural layer, the soft-hard-soft-hard layering set is feasible to optimize the anti-penetration performance against hypervelocity projectiles, in which the first soft layer is the surface layer made of porous materials with low sound impedance, the first hard layer is the shielding layer made of materials with high strength and hardness, and the second soft layer is the distribution layer and the second hard layer is the structural layer.
- hypervelocity penetration /
- model experiment /
- layered geological material targets /
- optimal configuration

HTML全文

图 1 弹体与弹托

Figure 1. Projectile and sabot

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图 2 靶体的分层设计

Figure 2. Sets of layered targets

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图 3 方案A的破坏现象

Figure 3. Damage phenomena in experimental set A

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图 4 方案B的破坏现象

Figure 4. Damage phenomena in experimental set B

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图 5 方案C的破坏现象

Figure 5. Damage phenomena in experimental set C

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图 6 方案D的破坏现象

Figure 6. Damage phenomena in experimental set D

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图 7 实验前和实验后的弹体形态与长度

Figure 7. Profiles and length of projectiles before and after experiment

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表 1 弹靶材料的基本材料参数

Table 1. Basic parameters of materials of projectile and target

材料	密度/ （kg·m⁻³）	单轴抗压强度/ MPa	硬度	纵波声速/ （m·s⁻¹）
30CrMnSi2A	7 850	1 920	HRC50
花岗岩	2 650	89.0		4 672
砂浆	1 850	3.84		2 439
混凝土	2 202	17.9		3 509

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表 2 成坑几何特征参数的量测结果

Table 2. Measurements of geometrical character of craters

实验方案	撞击速度/（m·s⁻¹）	D_1f/mm	D_1b/mm	D_1p/mm	h_1s/mm	D_f/mm	D_c/mm	h_c/mm
A	3 486.5	170～220	166～192	77～83	26		30	55.7
B	3 447.9	202～268	185～216	76～81	28		17	23.9
C	3 432.7					165～202	49	57.6
D	3 440.3					178～221	52	48.1

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