关键词: 三棱刀, 单刃刀, 锥, 高强织物, 穿刺作用

Abstract:

High performance fabrics are widely used in the antipiercing area In order to research the feature and mechanism of high performance fabric punctured by the tools, the drop mass device of which mass and height were adjustable was designed. Singleedged knife, threesquare knife and cone were chosen to spike the aramid fabric and UHMWPE fabric in the experiments. Due to this, the effect laws of impact energy, crosssection shape of the tools and the angle of incidence to the puncture were researched, and so were the type of fiber in the fabric, the structure of the fabric and laminated density to the protection. The analysis results shows that, the puncture effects are mostly due to the energy, but have less to do with the proportion of speed and mass. When the fabrics are punctured, the destroy patterns are depend on the crosssection of the tool. The structure is a key factor to the antipiercing ability for high performance fabrics For the fabrics made of the same material, the structure which has a good ability of antisqueeze will be better in antipiercing to cone and singleedged knife But to threesquare knife, the structure does not have obvious effect

Key words: threesquare knife, singleedged knife, cone, high performance fabric, spike