Ballistic performance of spaced multi-ply soft fabrics: Experimental and numerical investigation  

作　　者：Zhongwei Zhang Xiaoning Yang Yuan Lin Ziming Xiong Yuhang Xiang Yi Zhou Mingyang Wang 

机构地区：[1]State Key Laboratory of Explosion&Impact and Disaster Prevention&Mitigation,Army Engineering University of PLA,Nanjing 210007,China [2]School of Mechanical Engineering,Nanjing University of Science&Technology,Nanjing 210007,China [3]State Key Laboratory of New Textile Materials and Advanced Processing Technologies,Wuhan Textile University,Wuhan 430200,China [4]Postdoctoral Station of Civil Engineering,Army Engineering University of PLA,Nanjing 210007,China

出　　处：《Defence Technology（防务技术）》2024年第4期143-155,共13页Defence Technology

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 51708553, 12202498, 52371299,12302187);Natural Science Foundations of Jiangsu Province (Grant No. BK20210438);Knowledge Innovation Program of WuhanShuguang Project (Grant No. 202201080102)。

摘　　要：It has been reported that the ply gap influences the ballistic resistance of spaced multi-ply fabric systems,but its working mechanism was not well-understood. This paper reports the experimental and numerical approaches and results of an investigation on the mechanisms that enable the improved ballistic performance of spaced multi-ply systems. Penetration tests were performed over a range of impact velocities ranging from 200 m/s to 400 m/s. The results confirmed that the ply gap is beneficial to the energy absorption capability of the systems. This is because the front plies tend to absorb more energy when they are not immediately constrained by the rear plies. During a ballistic event, the gap relieves the reflection of the compressive pulse, prolonging the projectile engagement time with the front plies;on the other hand, the rear plies become increasingly less active in dissipating energy as the gap increases.When the gap is sufficiently widened to avoid any interference between the plies before the failure of the front ply, the responses of the whole system no longer vary. It was also found that the ballistic performance of the spaced systems is influenced by ply thickness, impact velocity, and the stacking order of the ply gap.

关 键 词：Energy absorption capability Ply gap Ballistic performance The front ply The rear ply 

分 类 号：TJ04[兵器科学与技术—兵器发射理论与技术] TJ410