Prediction on in-plane compression elastic properties of satin weave composites with pore matrix

Because of the complex meso-structure of satin weave composites, it is difficult to apply traditional methods to prediction on elastic properties. For this problem, the representative volume element (RVE) of satin weave composite was established and research on prediction on effective in-plane compression modulus and in-plane Poisson's ratio of the RVE was made. Longitude compression modulus of bending fiber yarns and properties of pore matrix were calculated based on energy method and inclusion theory, respectively. Traditional rules of mixtures formulations were improved so as to get an accurate analytical prediction on in-plane compression modulus and in-plane Poisson's ratio of the RVE. The model of the RVE was established based on Python language being used in the finite element method software ABAQUS. Prediction on effective in-plane compression modulus and in-plane Poisson's ratio was made based on finite element method results of the model under the basic forced state. The error between analytical method and numerical simulation is small, which gives an excellent prediction on in-plane compression modulus and in-plane Poisson's ratio of carbon/carbon satin weave composites.