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

作　　者：Yi Zhou Xiangpeng Xin Yang Li Yang Zhou Rui Zhang Lizhi Xu 

机构地区：[1]State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan 430200,China [2]School of Mechanical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China

出　　处：《Defence Technology(防务技术)》2025年第3期119-136,共18页Defence Technology

基　　金：support from the following for aspects of the research,authorship,and/or publication of this article:National Natural Science Foundation of China(Grant No.12302187);Knowledge Innovation Program of Wuhan-Shuguang Project(Grant No.202201080102).

摘　　要：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_(bl)s.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.

关 键 词：DFKF Ballistic performance SEA RESILIENCE Energy absorption Anti-ballistic umbrella 

分 类 号：TS1[轻工技术与工程—纺织科学与工程]