A Study On Tensile Stretching Performance Of Woven Fabric

Peirce' s rigid-thread model of the woven fabric and indented (straight line) model have been employed as a starting point ,the relationship among strengths which act on the interweave point of the individual warp and weft of fabrics during the process of stretching has been dealt with .During the analysis of the Peirce' s model, according to the Newton' s law of motion and the law of conservation of momentum, combining with other mechanical theories, the conclusion that the deformation of fabrics is composed of elastic deformation and geometric deformation has been achieved . And according to the law of equilibrium, the mathematical models for calculating the load -extention of plain woven fabrics have been set up respectively. During the analysis of the indented model , according to the presumed conditions and Castigliano theroy, the mathematical models for calculating the load -extention of plain woven fabrics have been set up.The above models take into account the effects between structural parameter of fabrics and load-extention of fabrics generally. Among them the structural parameter of fabrics compose the elastic constant of yarns , the fineness of warp and weft ,structure and warp density and weft density of fabrics .To confirm those models , many plain-woven samples and 2/1 woven samples have been collected .By means of experiment and numerical calculation , the agreement between the calculated results and the experimental data is satisfactorily obtained .This confirms the exact degree of those mathematical models.According to those confirmed models , the programs have been designed , the effects between structural parameter of fabrics and load-extention of fabrics have also been simulated in theory, and some figures have been obtained , the results are the same as practical law.The thesis is of momentous current significance. In terms of theory and practice , the relationships between structural parameter of fabrics and load -extention of fabrics has been set up. Through these models , the mechanical and physical function of fabrics can be deduced in advance before project. This supplies the fabrics developing and projecting with theoretical basis.