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Development of a constitutive theory for short fibre yarns. II. Mechanics of staple yarn with slippage effect

  • 출판일1997.01
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 258
A general constitutive theory governing the mechanical behaviour of staple yarns and including the effect of fibre slippage during yarn extension is presented. A differential equation describing the stress transfer mechanism as well as the slippage influence in a staple yarn is applied by which both the distributions of fibre tension and lateral pressure along a fibre length are derived. A so-called fibre slippage ratio is defined in terms of fibre and yarn properties to specify the length along both ends of a fibre that is slipping during yarn extension. The slippage effect is incorporated into the results obtained in part I (abstract 93W/01763) so that the tensile and shear moduli as well as Poisson's ratios of the yarn with slippage effect are theoretically determined. Comparisons of these properties in both cases with and without the slippage mechanism are provided.
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