聚脲涂覆钢复合结构的抗爆效应

王琪; 贾子健; 赵鹏铎; 王志军; 张鹏; 徐豫新

doi:10.11858/gywlxb.20200545

聚脲涂覆钢复合结构的抗爆效应

doi: 10.11858/gywlxb.20200545

王琪^1,,
贾子健^2,*, ,,
赵鹏铎¹,
王志军³,
张鹏^{1, 3},
徐豫新^{4, 5, 6}

1.
海军研究院，北京　100161
2.
瞬态冲击技术重点实验室，北京　102202
3.
中北大学机电工程学院，山西太原　030051
4.
北京理工大学爆炸科学与技术国家重点实验室，北京　100081
5.
北京理工大学重庆创新中心，重庆　401120
6.
北京理工大学高能量密度材料教育部重点实验室，北京　100081

基金项目: 国家自然科学基金（11302259, 11402027）

详细信息

作者简介:
王　琪（1987－），女，博士，工程师，主要从事舰船爆炸毁伤和防护技术研究. E-mail：406024194@qq.com

通讯作者:
贾子健（1992－），男，硕士，工程师，主要从事终点杀伤技术和防护技术研究. E-mail：zjjr116@163.com

中图分类号: O389
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出版历程
- 收稿日期: 2020-04-11
- 修回日期: 2020-05-02
- 刊出日期: 2020-07-25

Anti-Explosion Effect of Polyurea Coated Steel Composite Structures

WANG Qi^1
,,
JIA Zijian^{2,*
, ,},
ZHAO Pengduo¹,
WANG Zhijun³,
ZHANG Peng^{1, 3},
XU Yuxin^{4, 5, 6}

1.
Naval Academy of Armament, Beijing 100161, China
2.
Science and Technology on Transient Impact Laboratory, Beijing 102202, China
3.
School of Mechatronics Engineering, North University of China, Taiyuan 030051, Shanxi, China
4.
State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
5.
Beijing Institute of Technology Chongqing Innovation Center, Chongqing 401120, China
6.
Key Laboratory of High Energy Density Materials of Ministry of Education, Beijing Institute of Technology, Beijing 100081, China

摘要

摘要: 为研究不同涂覆方式下聚脲涂覆钢复合结构的抗爆性能及聚脲涂层的吸能机理。针对等面密度、等钢板厚度的无涂覆、迎爆面涂覆和背爆面涂覆3种结构，分别开展抗40和60 g TNT爆炸加载试验。通过对比复合结构破坏模式，分析聚脲涂层对复合结构抗爆性能的影响以及聚脲涂层防护机理。研究表明：等面密度条件下，迎爆面涂覆聚脲涂层不能提高复合结构的抗爆性能；等钢板厚度条件下，聚脲涂层可以提高复合结构的抗爆性能，且背爆面涂覆效果最佳；聚脲涂覆钢板复合结构的抗爆性能与聚脲涂层的本构弥散、界面弥散以及热软化效应等相关。
- 聚脲涂层 /
- 切线模量 /
- 递减硬化 /
- 软化效应
Abstract: In order to investigate the antiknock performance of polyurea coated steel composite structures and the energy absorption mechanism of polyurea coatings, the 40 and 60 g TNT explosion loading tests were carried out for the uncoated, equal-face coating and back-explosion coating structures with equal surface density and other steel plate thicknesses. Then the polyurea coatings’ effects on the antiknock performance of composite structures and their protective mechanism were analyzed in comparison of the failure modes of composite plates. It was found that the anti-explosion performance decreases with the thickening polyurea coating for the composite structure with uniform surface density, while improves under the same steel plate thickness conditions. In addition, coating on the rear surface proves to be the best. It was also shown that the antiknock performance of polyurea-coated steel composite structures is closely related to the characteristics of constitutive dispersion, interface dispersion and softening effect of the polyurea protective coating.
- polyuria coating /
- Tangent modulus /
- decreasing hardening /
- softening effect

HTML全文

图 1 靶板结构尺寸

Figure 1. Dimensions of target plate

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图 2 靶板实物

Figure 2. Target board

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图 3 试验工装布置

Figure 3. Test tooling arrangement

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图 4 准静态测试时聚脲材料切线模量的变化趋势

Figure 4. Trend of tangent modulus of polyurea materials under quasi-static tests

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图 5 动态测试时聚脲材料切线模量的变化趋势

Figure 5. Trend of tangent modulus of polyurea materials under dynamic tests

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图 6 靶板变形及破坏情况

Figure 6. Deformation and failure of targets

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图 7 球形冲击波载荷

Figure 7. Spherical shock wave loading

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图 8 靶板变形及破坏情况

Figure 8. Deformation and failure of targets

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图 9 箱体变形

Figure 9. Deformation and failure of boxes

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图 10 聚脲试样微观结构

Figure 10. Microstructure of polyurea sample

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表 1 静爆试验工况

Table 1. Experimental conditions

Shot No.	Condition	Charge mass/g	Collapse distance/mm	Steel plate thickness/mm	Coating thickness/mm	Coating position
01	Same areal density	40	50	2.0
02		40	50	1.5	4.0	Front face
03		40	50	1.2	6.0	Front face
04	Same thickness of steel plate	60	50	1.2
05		60	50	1.2	6.0	Front face
06		60	50	1.2	6.0	Back face

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