The effect of the layering method for various types of weaving on the protective properties of multilayered fabric barriers

The work is devoted to the investigation of the influence of the weaving type in woven composites on the results of low-speed (up to 350 m/s) penetration for multi-layer woven barriers of aramid fibers. The geometric features of plain and twill types of weaving are modelled in details. According to the obtained experimental data, the elastic properties and strength limits for the warp and weft threads can be different. These experimental results are also taken into account in modelling as well as the significant differences in the interlayer friction parameters for fabrics of different weaving types. The computer models for the penetration of plain fabrics were verified on the basis of the fulfilled full-scale experiments on the penetration of four- and ten-layer woven barriers. The penetration problems for combined obstacles with different mutual arrangement of plain and twill 3/3 fabrics were investigated. It is shown that some methods of packing, assuming alternation of layers of plain and twill 3/3 weave improve the protective properties of the multilayered fabric barrier.