膜材经向拉伸性能数值模拟

膜材的强度主要由基布提供,基布由纱线编织而成,基于这样的膜材生产过程提出通过纱线拉伸性能建模模拟基布经向拉伸曲线和膜材经向拉伸曲线.以 MC 13122-1100/902膜材为例应用通用有限元程序Abaqus模拟,得到的模拟曲线与试验曲线在拉伸曲线的前两个阶段吻合很好,第三阶段稍有差异,对工程应用来讲模拟曲线是可靠的.

The Numerical Simulation of Warp Membrane Tensile Test

The membrane strength depends on fabrics and fabrics are woven from warp and weft yrans,so the idea that warp fabrics tensile test curve and warp memebrane tensile test curve can be obtained by modeling when yarrn strength and elongation tests are known is proposed.For MC 13122-1100/902 membrane,applying finite element program Abaqus warp fabrics tensile test curve and warp memebrane tensile test curve are simulated.Compared with the test curve,simulation curve coincide well with test curves of the first and second phases,and there are slightly different from the third phase.Numerical simulation is reliable intrms of engineering application.