Theoretical Initial Modulus of Yarns with Fiber Migration

섬유의 Migration이 실의 역학적 성질에 미치는 영향

The orientation density functions of the fibers in the yarn were newly defined and derived for the four different migration structures, i.e., idealized helical, ideal migration, Treloar's theoretical migration, and conical migration structures. The relative initial moduli of the yarns having the migration structures were calculated and compared with each other at the several surface twist anglect. The initial moduli of the yarn decrease as the decree of migration increases for all migration structures studied.