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Analysis of the Single Bar Warp Knitted Structure Using an Energy Minimization TechniquePart II: Results and Comparison with Woven and Weft Knitted AnalysisUniversity of New South Wales, Kensington, NSW 2033, Australia
University of New South Wales, Kensington, NSW 2033, Australia
University of New South Wales, Kensington, NSW 2033, Australia Some computed results of an energy method of analysis applied to single bar warp knitted structures (Part I) are presented. They are compared with experimental results and previous models of the warp knit structures in the literature. The single bar warp knit structures are characterized by a complex interlacing pattern and relatively little restriction to changes and redistribution of yam loop shape as the fabric is stretched. Computer results show that the yam loops are oriented to lie perpendicular to the fabric plane when the fabric is stretched. At the same time the fabric thickness is reduced. The distributed forces acting along the yams within a unit repeat of the single bar warp knitted structures are more peaked than those of the weft knitted fabrics. The forces of contact arising from the neighboring but not interlocking yarns within the repeat of the warp knit structure are significant. The single bar warp knit structures are compared to the weft knitted and woven fabrics by means of a redefined tightness parameter.
Textile Research Journal, Vol. 55, No. 9,
530-539 (1985) |
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