服用织物拉伸性能的各向异性分析

Anisotropic Analysis of Fabric Tensile Property

为了揭示低应力作用下不同拉伸方向对织物拉伸性能的影响,采用Instron3344测试仪对4种机织物和4种纬编针织物进行测试及统计分析。主要研究内容包括:建立拉伸应变和弹性模量与拉伸角度之间的变化曲线,并阐述它们的变化规律;通过SPSS的非线性回归分析建立拉伸应变和弹性模量与拉伸角度之间函数关系的拟合方程。结果显示:机织物与纬编针织物在拉伸性能的各向异性方面具有不同的曲线特征,所建的三角函数拟合方程均具有较高的拟合优度。

In this paper,Instron3344 tester is used to test tensile properties of 4woven fabrics and 4weft knitted fabrics in order to master the influence of different tensile directions on tensile properties under low stress.The main contents include:establish a curve graph between tensile strain and elasticity modulus and describe their change rules;use nonlinear regression in SPSS system to create fitting equations between tensile strain,elasticity modulus and stretching angle.The results show:woven fabrics and weft knitted fabrics have different curve characteristics in terms of anisotropic tensile behaviors,and all fitting equations of trigonometric function have high goodness of fit.