为了在织物设计时可以依据织造原料的纱线性能来估算织物的拉伸性能,以预测、优化织物的拉伸性能,对织物的整个拉伸过程做了有限元仿真和试验验证.选用规格相近的涤纶仿真丝和真丝织物,借助超景深数码显微镜VHX-5000测量织物试样,获得纱线的几何结构参数,运用AutoCAD软件构建织物三维系统的有限元模型;并运用有限元软件Ansys,设置载荷和边界条件,求解拉伸载荷的仿真数值结果;最后将有限元模拟结果与试验结果相对比.结果表明:织物拉伸模拟曲线与实验曲线基本相同,证明有限元仿真的可行性;涤纶仿真丝和真丝织物的拉伸曲线在拉伸初始阶段和断裂阶段有明显差异.%In order to evaluate and optimize tensile mechanical properties of fabrics according to yarn properties of weaving materials in fabric design,finite element simulation and experimental verification of the whole tensile process were made for the fabric. Polyester silk-like and silk fabrics with similar specifications were chosen, and the fabric samples were measured with super depth of field digital microscope VHX-5000 to gain the geometry parameters of the yarns. The three-dimensional finite element model was built by AutoCAD. Then, the load and the boundary conditions were set by applying the finite element software Ansys to solve simulation results of tensile load. Lastly, the finite element simulation results and experimental results were compared. The results indicate that the tensile simulation curves and experimental curves are basically similar,verifying the feasibility of finite element simulation. There are obvious differences between silk fabrics and polyester silk-like fabrics in the initial stage and breaking stage of tensile curves.
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