Theoretical analysis of biaxial tensile properties of power net

Abstract

Power net is a kind of warp knitted fabric and a distinctive feature of this fabric is its high extensibility in both wale and course directions. The main uses of this power net are supporters, ladies foundation garment, girdle etc. due to its high formability property. The theory of the biaxial extension of power net is introduced, in this study. And the theory is inspected by the biaxial extension experiments of a power net for various biaxial extension modes. The experimental results and theoretical predictions prove to be in agreement. The biaxial extension property of a power net was analyzed and compared with experimental results obtained by a biaxial tensile tester. Another sample was also inspected, and same results were given. The theory can predict well, especially in the forces along the tensile direction, and good agreement between experimental and calculated results was obtained. The theory by the simplified model might be useful for designing the power net, and with the various studies until now, this will be powerful tool for the design of the wearing comfort of ladies foundation garment and so on.