A study of yarn friction in aramid fabrics

Abstract

Energy dissipation by the friction forces of yarns in aramid fabrics with different weave patterns is studied. The upper theoretical limit of the ability of fibers to absorb the energy of transverse impact is determined. The maximum pull-out force for yarns of a plain-weave fabric nonlinearly depends on the number of pulled-out yarns. In twill-weave fabrics, this dependence is linear. Changing the weave pattern is an effective way to change the pull-out forces for yarns. Owing to the slippage of the yarns, the fabric behaves as a plastic material.