Numerical simulation of woven fabric wrinkling

摘要

Fabric's tendency to wrinkle is crucially important to the textile industry as it impacts on the visual appeal of apparels. Current methods of grading this characteristic are very subjective and inadequate. As such, a quantitative method for assessing fabric wrinkling is of the utmost importance for the textile community. To that end, this paper reports on a numerical study of the wrinkling behaviour of cotton- and polyester-woven fabrics using the cylindre creux test. A fabric trellis shear test method was used in order to describe the viscoelastic behaviour of fabrics. Afterwards, an approach by means of continuous mechanics theory is suggested for numerical simulation of the wrinkle recovery of textile-woven fabric. The numerical procedure used an explicit dynamic scheme for the quasi-static problem involving complex nonlinear effects (complex contact conditions). To characterise these coined numeric wrinkles, a state analysis of the normal vectors to the fabric surface was considered.