ABSTRACT
Frictional interactions between intersecting warp and weft yarns have a great influence on the behavior of different types of fabrics even for apparel application with deformations like yarn running, tearing and drape or industrial fabrics undergoing fragment impact, projectile penetration or other large deformations. Frictional forces, which are involved in load transfer and energy absorption, determine directly the magnitude of the interactions within the fabric. Yarn-to-yarn friction as an important mechanical characteristic can be measured by different methods, like twist friction (capstan) method, Howell hanging fiber method and inclined plane method [2]. Although all these methods are based on strong physical hypotheses, they can simulate the simple yarn-to-yarn friction and are incapable in remodeling the exact internal friction within the fabric, which is influenced by the interactions of neighbor yarns, weaving pattern and density.
