A New Tensile Model for Rotor Spun Yarns

X. Y. Jiang, Jinlian Hu, R. Postle

Research output: Journal article publicationJournal articleAcademic researchpeer-review

6 Citations (Scopus)


This paper reports a refined model to predict the tensile behavior of rotor spun yarn from the knowledge of specimen specifications and yarn strain. Fundamental approaches used in modeling include a discrete fiber-modeling principle, an energy method, and a “shortest-path” hypothesis. The study is based on a coaxial-helix structural model, taking account of nonuniform yarn packing density. Most importantly, a changing-pitch system is introduced for the first time in yarn modeling. A pitch function is thus determined with the aid of a nonlinear regression method and a curve-fitting approach using images obtained from a tracer fiber technique. The model is also compared with experimental data, together with a theoretical analysis of fiber strain distribution, confirming that, due to the introduction of the changing-pitch system, the model is very successful in explain ing the experimental observations.
Original languageEnglish
Pages (from-to)892-898
Number of pages7
JournalTextile Research Journal
Issue number10
Publication statusPublished - 1 Jan 2002

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics


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