Behavior of Yarn Pullout from Woven Fabrics: Theoretical and Experimental

Abstract

Yarn pullout behavior from a woven fabric is an important indicator of the mech anism 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 maximum pullout load and the embedded yam length in a woven fabric with tight structure. The maximum load is shown in the theory related to the mechanical and geometric properties of the fabric and yam. Experimental work verifies the connections between fabric properties and yam pullout behavior, and a comparison of critical yam pullout lengths, predicted and measured, is also presented. This work should be useful in understanding the nature of yarn interaction in a fabric as well as the structure-rein forcing mechanism of woven fabrics.