Direct numerical simulation of 3D woven textile composites subjected to tensile loading: An experimentally validated multiscale approach

摘要: Abstract An experimentally validated multiscale computational model for predicting the progressive damage and failure analysis (PDA) of 3D woven textile composites (3DWTCs), is presented. The 3DWTCs are made through a weaving process dry fiber tows infused with SC-15 polymer matrix into single composite material. A thick symmetric configuration hybridized (carbon, glass kevlar tows) architecture examined at entire coupon level to determine progression under tensile loading understand benefits hybridization resulting performance enhancements. Results also include micro-CT laboratory scale study effect microstructure imperfections response. finite element (FE) generated directly from data using software, Simpleware [1]. three-scale modeling strategy adopted, where meso-scale representative volume elements (RVEs) modeled explicitly in prone gage-area consider tow 2-layer concentric cylinder (2CYL) [2,3] micromechanics used within fiber/matrix pre-peak nonlinearity, as caused by microdamage. analytical subscale results computationally efficient framework PDA 3DWTCs.