纺织学报 ›› 2020, Vol. 41 ›› Issue (11): 59-65.doi: 10.13475/j.fzxb.20200101408

• 纺织工程 • 上一篇    下一篇

层间间距对平纹双层结构靶体抗侵彻性能的影响

周熠1,2, 李杭1, 严祥邦1, 梁耀庭1, 张中威2()   

  1. 1.武汉纺织大学 纺织纤维及制品教育部重点实验室, 湖北 武汉 430200
    2.陆军工程大学 爆炸冲击防灾减灾国家重点实验室, 江苏 南京 210007
  • 收稿日期:2020-01-09 修回日期:2020-06-05 出版日期:2020-11-15 发布日期:2020-11-26
  • 通讯作者: 张中威
  • 作者简介:周熠(1987—),男,副教授,博士。主要研究方向为弹道防护材料及其力学分析。

Influence of layer spacing on ballistic performance of double-plied plain fabric target

ZHOU Yi1,2, LI Hang1, YAN Xiangbang1, LIANG Yaoting1, ZHANG Zhongwei2()   

  1. 1. Key Laboratory of Textile Fiber & Product, Ministry of Education, Wuhan Textile University,Wuhan, Hubei 430200, China
    2. State Key Laboratory of Explosion & Impact and Disaster Prevention & Mitigation, The Army Engineering University of PLA, Nanjing, Jiangsu 210007, China
  • Received:2020-01-09 Revised:2020-06-05 Online:2020-11-15 Published:2020-11-26
  • Contact: ZHANG Zhongwei

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摘要：

为满足软体防弹叠层增强减重的需求和优化柔性叠层防弹材料的结构设计,通过增加层间间距,改变靶体迎弹面和背弹面的动态响应,提升其抗侵彻性能。叠层的吸能性能通过弹丸侵彻实验进行表征,且通过有限元模型分析叠层结构的吸能机制。弹丸侵彻实验结果表明:靶体的吸能效果随层间间距变宽先下降后上升,当间距到达一个临界值后,吸收的能量将停止增长;有限元模型的仿真数据与实验数据的变化趋势相吻合,表明靶体迎弹面横向形变的宽度和应力分布的面积随间距的变宽而增大,背弹面应力分布的强度随间距的变宽而减弱。

关键词: 柔性防弹服, 防弹材料, 层间间距, 抗侵彻性能, 弹丸侵彻

Abstract:

In order to meet the requirements of performance improvement and weight reduction of flexible ballistic panels, and to optimize the structure design of flexible multi-ply ballistic materials, spacing was incorporated between the adjacent layers to study the dynamic response of the front and back layers. This research used ballistic penetration test to characterize the energy absorption capacity of fabric panels, and also made use of a finite element model to analyze the mechanisms of energy absorption. It was found from the ballistic tests that the energy absorption of the target decreases and then increases as the layer spacing widens. When a critical value is reached, the energy absorption stops increasing. The numerical predictions obtained from finite element modeling share similar trend with the experimental results. It was found that the transverse deflection and the stress distribution area of the front layer increase as the layer spacing becomes widened, whereas the magnitude of stress distribution decreases on the rear layer.

Key words: flexible body armor, ballistic material, layer spacing, anti-penetration performance, ballistic penetration

中图分类号: 

  • TS131

图1

弹丸冲击实验设备示意图"

图2

弹丸与夹具示意图"

图3

长丝束及平纹织物与弹丸的有限元模型"

图4

单层结构和双层结构实验及有限元建模入射速度-出射速度曲线"

图5

靶体能量吸收随层间间距变化规律"

图6

被弹丸贯穿后的芳纶平纹织物"

图7

靶体迎弹面织物断裂横向形变及其应力云图"

图8

靶体背弹面织物断裂横向形变及其应力云图"

图9

靶体能量吸收随时间变化规律"

图10

靶体迎弹面织物应变能和动能随时间的变化"

图11

靶体背弹面织物应变能和动能随时间的变化"

图12

弹丸冲击靶体示意图"

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