Mechanical strength prediction of plain woven fabric composite:1.finite element model of composite RVE

In order to predict the mechanical property and strength of the plain woven fabric composite,a finite element model of the Representative Volume Element(RVE) with a convexo-convex structure was established based on plain woven fabric laminates in the distribution of micro yarn.In the model,impregnated yarns are elastic materials and the resin is plastic material.By means of finite element software ANSYS,the components of the RVE were meshed into 8 node-solid elements.RVE′s modulus and strength were predicted by numerical analysis.The results show that simulated modulus coincides well with the equivalent stiffness method and test results and the predicted strength conforms to the tensile test results.Finite element model of plain woven fabric laminates′RVE can be established parametrically,thus would have a good perspective in strength prediction.