Bending fatigue theory of textile fibers and its application

Based on the current research on the fiber fatigue mechanism,some related research methods and devices for the fiber bending fatigue were summarized with a view to getting more understanding of the application properties of fibers and rational use of textile fibers.In terms of soft fiber bending fatigue research at present,there mainly exist three methods inclnding stress life(S-N) method,energy method and polymer fatigue theory.These findings play an important role in bending fatigue research of textile fibers.Along with the development of the theories,the corresponding bending fatigue test instrument has a great deal of improvements.Combined with some modern professional software,the fiber fatigue research contents and methods are more and more convenient and realistic.These effectively promote the research of the textile fiber bending fatigue.