STAB PERFORMANCE OF SHEAR THICKENING FLUID ( STF ) – FABRIC COMPOSITES FOR BODY ARMOR APPLICATIONS
STAB PERFORMANCE OF SHEAR THICKENING FLUID ( STF ) – FABRIC COMPOSITES FOR BODY ARMOR APPLICATIONS
复制标题
DOI：
--
复制
发表时间：
2005
期刊：
影响因子：
--
通讯作者：
R. G. Egres;C. Halbach;M. J. Decker;E. Wetzel;N. Wagner
中科院分区：
文献类型：
--
作者：
R. G. Egres;C. Halbach;M. J. Decker;E. Wetzel;N. Wagner
传统的防弹衣系统可以防止弹道威胁，但对刺伤威胁的抵抗力相对较小。因此，需要制造提供弹道防护和防刺性两者的防弹衣材料。先前的研究（Lee等人，2002，2003）已经表明，与常规防弹衣系统中使用的纯织物相比，高强度织物如浸渍有胶体剪切增稠流体（STF）的Kevlar具有改善的防弹性能。在这项研究中，STF织物复合材料的耐刺性（对切割和穿刺的威胁）的报告。采用基于美国国家司法研究所（NIJ）标准0115.0的落塔穿刺试验，研究了凯夫拉和尼龙织物。将多层STF织物目标的性能与类似面密度的纯织物目标进行比较。定性和定量结果均表明，用STF浸渍的织物具有改善的抗刺性。特别是，显着改善耐穿刺性（尖峰威胁）观察到STF织物复合材料相比，他们的净对应物。另外的测试表明，STF的添加可以提高紧密编织的织物对注射器针头穿透的抵抗力。
Conventional body armor systems protect against ballistic threats but have relatively little resistance to stab threats. Consequently, a need exists to create body armor materials that provide both ballistic protection and stab resistance. Previous studies (Lee et al., 2002, 2003) have shown that high strength fabric such as Kevlar impregnated with colloidal shear thickening fluids (STFs) have improved ballistic properties compared to neat fabrics used in conventional body armor systems. In this study, the stab resistance (against cut and puncture threats) of STF-fabric composites is reported. Kevlar and Nylon fabrics are investigated, utilizing a drop tower stab test based on the National Institute of Justice (NIJ) Standard 0115.0. The performance of multi-layer STF-fabric targets is compared to neat fabric targets of similar areal densities. Both qualitative and quantitative results show that fabrics impregnated with STF have improved stab resistance. In particular, significant improvement in puncture resistance (spike threat) is observed for STF-fabric composites compared to their neat counterparts. Additional tests demonstrate that STF addition can improve the resistance of tightly woven fabrics to penetration by syringe needles.