Multiscale modeling and failure analysis of an 8-harness satin woven composite

Abstract

8-harness satin (8HS) woven composites display complex architecture and a certain feature of mutually orthogonal reinforcement, which arise particular interest for aerospace structural groups. In this study, based on realistic geometry parameters and material property, multiscale finite element models of an 8HS woven composite are established. The effective properties of fiber bundles can be obtained by the micro-scale model and then used in the meso-scale model. The meso-scale model is established to predict the global failure behavior of 8HS woven composites under tensile load using the periodic boundary conditions. The predict results are compared to experiments from tensile tests and microstructure analysis on oxide/oxide 8HS woven ceramic matrix composites. The good correlation of the comparison shows that the multiscale modeling approaches can accurately predict the mechanical properties and failure mechanism of 8HS woven composites under plane tensile load when considering the particular material features.