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The Torsional Behavior of Singles Yarns. Part I: Theory

  • 출판일1996.04
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 255
Research on the torsional behavior of singles yarns used the conventional method that predicts the tensile behavior of bulky singles yarns at small extensions (less than 10 percent) to model torsion. Discrete fiber modeling principles, an energy method, and a shortest path hypothesis formed the basis of the theoretical analysis. The potential for nonuniform fiber packing density acrosss the cross section of bulky singles yarns affected twisting behavior. Models represented yarn twisting under constant yarn length and tension. With yarn twisting under constant yarn length, the geometric condition controlled by a shortest path hypothesis determined the structural and mechanical states of the deformed yarn. With yarn twisting under constant yarn tension, a shortest path hypothesis in conjunction with a minimum energy condition determined these states. Calculations include the contribution of yarn torque to fiber tension, torsion, and bending. 34 refs.
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