Consideration of the yarn-yarn interactions in meso/macro discrete model of fabric - Part II: Woven fabric under uniaxial and biaxial extension

A mesoscopic discrete model of fabric has been developed, accounting for the yarn-yarn interactions occurring at the yarn crossing points. The fabric yarns, described in their initial state by a Fourier series development, are discretized into elastic straight bars represented by stretching springs, and connected at frictionless hinges by rotational springs. In the first part of the paper, the behavior under uniaxial tension of a single yarn has been investigated, and the impact of the interactions of the transverse yarns has been quantitatively assessed. The consideration of the yarn interactions is extended in this second part at the scale of the whole network of interwoven yarns, under uniaxial and biaxial loading conditions. The effect of the transverse yarns properties under uniaxial tension is evidenced, as well as the impact of the biaxial loading ratio. (C) 2007 Elsevier Ltd. All rights reserved.