Resistance of tear is an important characteristic of textile materials, especially for fabrics used for personal protective equipment. In this study, a constant force is applied to tear the fabric specimens to obtain the del-zone theoretically. The strain-stress curve for a single yarn is obtained from experiment, and the del-zone is determined by an ancient Chinese algorithm. This combination of ancient Chinese algorithm and actual tearing behavior of woven fabrics provides a noval analysis approach of tearing performance of textile product theoretically.
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