MATHEMATICAL MODEL FOR CALCULATING BREAKING ENERGY OF COMPONENT YARNS IN DUAL-SHEATH SINGLE-CORE HYBRID YARN

Authors : Md. Azharul Islam, Rochak Rathour, Bipin Kumar, Apurba Das, Nandan Numar

Pages : 1-13

Doi:10.7216/teksmuh.1563481

View : 26 | Download : 44

Publication Date : 2025-03-30

Article Type : Research Paper

Abstract :The increasing utilization of multicomponent hybrid yarns in present world highlights their critical role in advancing protective textile technologies. In this study, hybrid yarns with dual sheath and a single core were produced in varying linear densities and twist directions where polyester and ultra-high molecular weight polyethylene (HPPE) were considered as the sheath components and stainless steel (SS)/glass yarn was taken as core component. The failure pattern and energy required for breakage of hybrid yarn were analyzed, showing that glass-core yarns exhibited multiple cracking tendency, while (SS)-core yarns rarely did. This was attributed to the lower breaking extension % of glass fibers (3.61%-3.81%) compared to SS (18.52%-28.05%), HPPE (5.20%-6.21%), and polyester (17.05%). Glass-core yarns reached their breaking extension earlier, leading to premature breakage. A mathematical model developed from load-extension curves demonstrated that HPPE contributed the most to breaking energy (68.67%), followed by polyester (18.49%) and glass (10.92%). The average absolute error of the model was calculated as 4.87% that led to average ~95% accuracy. The reason for this error was the assumptions about HPPE breakage that were considered during modeling. These findings support researchers in identifying high-performance yarns suitable for cut, stab, and slash-resistant fabrics, ensuring compliance with energy failure standards and allied industrial practices.
Keywords : Kompozit iplik, çekirdek kılıf ipliği, çekme dayanımı, kopma işi.