Cut Resistance of High-strength Yarns
Cut Resistance of High-strength Yarns
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DOI：
10.1177/0040517506067335
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发表时间：
2006-08
影响因子：
2.3
通讯作者：
H. Shin;D. Erlich;J. Simons;D. Shockey
中科院分区：
文献类型：
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作者：
H. Shin;D. Erlich;J. Simons;D. Shockey
在拉伸-剪切载荷条件下，通过将刀刃以恒定的速度横向挤压在纱线的两端，测量了三种高强度纱线的剪切阻力。确定了芳纶(芳纶)、Spectra(聚乙烯)和Zylon(聚苯并双恶唑，或PBO)的载荷-挠度关系和切断纱线所需的能量。开始切割所需的切割能量和应变，赛龙最大，凯夫拉最小，并且取决于切片角度、刀片的锋利程度和纱线中的预张力。通过纱线内纤维失效模式的变化来解释这种依赖关系。该测试为计算模拟织物对尖锐碎片的弹道响应提供了所需的输入，并应有助于设计防划伤手套和服装。
The cut resistance of three high-strength yarns under tension-shear loading conditions was measured by pressing a knife blade transversely at a constant rate against a yarn gripped at its ends. The load-deflection relation and the energy required to cut through the yarn were determined for Kevlar (aramid), Spectra (polyethylene), and Zylon (polybenzobisoxazole, or PBO). The cut energy and strain to initiate cutting were highest for Zylon, least for Kevlar, and depended on the slicing angle, the sharpness of the blade, and the pre-tension in the yarn. The dependencies are explained by changes in failure mode of the fibers within the yarn. The test provides input needed for computational simulations of ballistic response of fabrics to sharp fragments and should be useful in designing slash-resistant gloves and clothing.