The superior ballistic performance of highly stretchable and flexible double-face knitted fabrics (DFKF): An experimental investigation

IF 5 Q1 ENGINEERING, MULTIDISCIPLINARY

Defence Technology(防务技术) Pub Date : 2025-03-01 DOI:10.1016/j.dt.2024.10.005

Yi Zhou , Xiangpeng Xin , Yang Li , Yang Zhou , Rui Zhang , Lizhi Xu

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引用次数: 0

Abstract

When the protective and protected systems are detached, the former can be allowed to absorb the kinetic energy of the impacting projectile through large deformation without considering the back face signature of the latter. This paper presents a novel double-face knitted fabric (DFKF) designed for this very impacting scenario. Shooting tests equipped with high-speed camera were used to characterize the ballistic performance with the impact velocities ranging from 100 m/s to 450 m/s. The results showed that the ballistic limits (V_bl) of DFKF are approximately triple and double that of its counterpart UD and plain fabrics, respectively. For mass-normalized metrics, the specific energy absorption (SEA) is 250% and 350% greater than the UD and plain fabrics at their corresponding V_bls. The quasi-static tests showed that the DFKF displayed greater resilience, crease recovery properties, and flexibility, which also made it an especially better candidate than UD and plain weaves for the design of umbrella surface cloth. It was also found that DFKF is dependent on yarn count and the incorporation of spandex. A prototype anti-ballistic umbrella is manufactured using DFKF made of 200D multi-filament yarn. The ballistic performance is also sensitive to the impact site when the umbrella is subjected to impact.

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高拉伸柔性双面针织物优越的弹道性能：实验研究

当防护系统和被防护系统分离时，可以允许前者通过大变形吸收冲击弹丸的动能，而不考虑后者的背面特征。本文提出了一种新的双面针织织物（DFKF），专为这种非常有影响的场景。在100 ~ 450 m/s的冲击速度范围内，采用高速摄像机进行射击试验，对弹道性能进行了表征。结果表明，DFKF织物的弹道极限（Vbl）分别约为UD织物和普通织物的三倍和两倍。对于质量归一化指标，其比能量吸收（SEA）在相应的Vbls上比UD和plain织物高250%和350%。准静态试验表明，DFKF具有更好的回弹性、折痕恢复性能和柔韧性，这也使它比UD和平纹织物更适合用于伞面布的设计。还发现DFKF与纱支和氨纶掺入量有关。一个原型的反弹道伞是用DFKF制成的200D多长丝纱。伞体受到冲击时，其弹道性能对冲击部位也很敏感。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Defence Technology(防务技术) Mechanical Engineering, Control and Systems Engineering, Industrial and Manufacturing Engineering

CiteScore

8.70

自引率

0.00%

发文量

728

审稿时长

25 days

期刊介绍： Defence Technology, a peer reviewed journal, is published monthly and aims to become the best international academic exchange platform for the research related to defence technology. It publishes original research papers having direct bearing on defence, with a balanced coverage on analytical, experimental, numerical simulation and applied investigations. It covers various disciplines of science, technology and engineering.