Mechanics of Three-Dimensional Textile Structural Composites: Performance Modeling

摘要: This paper presents a model for the prediction of anisotropic elastic stiffness 3-D textile structural composites based on preform architecture and preforming process parameters. The methodology employed in this uses modeling to represent fiber microstructure micro-mechanical analysis determine macroscopic stiffness. Representative volume elements (macro-cells) are identified three-dimensionally woven preforms geometric descriptions path interactions between tows within cells generated. enables estimation fraction directional distribution composite. macro-cell is further decomposed into simpler whose determined from tow geometry fiber/matrix constituents. composite obtained definition using an Effective Response Comparison (ERC) technique. Numerical results compared with data experimental characterization several composites.