Test and Numerical Simulation of Penetration Resistance of Polyurea/fiber Composite Structures

Xiaohui GONG; Guoning RAO; Rudong ZHOU; Xiaofeng ZHU; Decheng KONG; Chenyu MENG

doi:10.12382/bgxb.2024.0709

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Test and Numerical Simulation of Penetration Resistance of Polyurea/fiber Composite Structures

更新时间：2025-09-05

- Test and Numerical Simulation of Penetration Resistance of Polyurea/fiber Composite Structures
- Acta Armamentarii Vol. 46, Issue 7, Pages: 240709(2025)
- 作者机构：
  
  1. 南京理工大学安全科学与工程学院, 江苏南京 210094
  2. 中海油常州涂料化工研究院有限公司, 江苏常州 213000
- 作者简介：
- 基金信息：
- DOI：10.12382/bgxb.2024.0709
  CLC：
- Received：20 August 2024，
  
  Published Online：12 August 2025，
  
  Published：31 July 2025
- 稿件说明：
移动端阅览
Xiaohui GONG, Guoning RAO, Rudong ZHOU, et al. Test and Numerical Simulation of Penetration Resistance of Polyurea/fiber Composite Structures[J]. Acta Armamentarii, 2025, 46(7): 240709.
DOI：

Xiaohui GONG, Guoning RAO, Rudong ZHOU, et al. Test and Numerical Simulation of Penetration Resistance of Polyurea/fiber Composite Structures[J]. Acta Armamentarii, 2025, 46(7): 240709. DOI： 10.12382/bgxb.2024.0709.

摘要

为增强和测试材料结构的抗破片侵彻能力

采用聚脲、芳纶纤维和2024-T351铝合金材料

通过喷涂聚脲技术构建了聚脲/纤维铝合金复合防护结构

并对聚脲的力学性能进行测定与分析。通过结构抗破片侵彻试验和数值仿真

比较了不同涂覆厚度和方式下复合材料的防护性能

得出了不同防护结构的弹道极限速度

并分析了材料的破坏模式和机理

进而研究涂层厚度与防护效果之间的关系

确定了最佳涂覆厚度比例。研究结果表明:对于采用2mm聚脲、2mm芳纶纤维涂层的铝合金复合靶板

其局部损伤程度较小;与未涂覆的情况相比

该复合靶板的弹道极限速度提高了96m/s

防护效果提升了36.64%;防护涂层厚度对弹道极限速度的提升效果有限。综合考虑面密度和材料强度等因素

数值仿真结果表明

对于4mm铝合金板的抗破片侵彻结构

聚脲/纤维涂层的最佳厚度为4~6mm

最佳厚度比例为聚脲与芳纶纤维的比例为6:4。

Abstract

In order to enhance and test the fragment penetration resistance of the material structure

the polyurea/aramid fiber aluminum alloy composite protection structure was constructed by spraying polyurea technology with polyurea

aramid fiber and 2024-T351 aluminum alloy materials

and the mechanical properties of polyurea are measured and analyzed. By comparing the protection properties of composite materials under different coating thicknesses and methods

the ballistic limit velocity of different protection structures were obtained

and the failure modes and mechanisms of materials were analyzed.The relationship between coating thickness and protection effect was further studied

and the optimal coating thickness ratio was determined. The results show that the local damage degree of aluminum alloy composite plate coated with 2mm polyurea/2mm aramid fiber is small. The ballistic limit velocity of the coated composite target plate is increased by 96m/s and the protective effect is increased by 36.64% compared with the uncoated condition. The thickness of the protective coating has limited effect on the ballistic limit velocity. Considering the surface density and material strength

the numerical simulation results show that the optimal thickness of polyurea/aramid fiber coating is 4mm to 6 mm

and the optimal thickness ratio is 6:4 ratio of polyurea to aramid fiber for the fragmentation resistance of 4mm aluminum alloy plate.

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