engleski

Comparison of anisotropic properties of woven fabrics and knitted fabrics subjected to tensile load

Theoretical analysis of the behavior of textile materials due to its anisotropic properties is very complex, and experimental testing of mechanical properties of knitted and woven fabrics is carried out. Measuring the stretch of knitted and woven fabrics when tensile forces act in different directions is an effective way to characterize anisotropy and structural changes of textiles. This paper analyzes the effect of anisotropy of knitted and woven fabrics on values of maximum force, maximum elongation, modulus of elasticity, work up to maximum force under action of tensile forces on samples that were cut at different angles to course direction of knitted fabrics, or to weft direction of woven fabrics. In experimental part of paper, samples of double weft knit fabric with 30 tex fineness of single cotton yarn and samples of cotton woven fabric in plain weave were tested. For different cutting angles of samples, curves of relationship between values of tensile forces and elongation to break were experimentally obtained. From the obtained force-elongation curves, modulus of elasticity was experimentally determined and work up to maximum force was calculated.

anisotropy, modulus of elasticity, double weft knit fabric, cotton woven fabric, off-axes tensile behavior, maximum force

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