BEHAVIOR OF YARN PULLOUT FROM WOVEN FABRICS - THEORETICAL AND EXPERIMENTAL

Yarn pullout behavior from a woven fabric is an important indicator of the mechanism of yarn interactions within the fabric and a predictor of its various mechanical properties. It is investigated in this paper both theoretically and experimentally. An analytical model developed for nonwoven structures is modified here to describe the yarn pullout process. This theory is able to predict the relationship of the maximu m pullout load and the embedded yarn length in a woven fabric with tig ht structure. The maximum load is shown in the theory related to the m echanical and geometric properties of the fabric and yarn. Experimenta l work verifies the connections between fabric properties and yarn pul lout behavior, and a comparison of critical yarn pullout lengths, pred icted and measured, is also presented. This work should be useful in u nderstanding the nature of yarn interaction in a fabric as well as the structure-reinforcing mechanism of woven fabrics.