A failure model for the analysis of cross-ply Non-Crimp Fabric (NCF) composites under in-plane loading: Experimental & numerical study

In the present work, a set of physically-based failure criteria are applied to cross-ply Non-Crimp Fabric (NCF) composite. The proposed account for stitch reinforcement and induced in- out-of-plane fibre misalignment. A distinction between matrix failures in tension compression is introduced, while in-plane shear non-linear response directly incorporated model as well. constitutive associated with an energy-based damage mechanics method, which consists five variables per layer level. Within this study, novel approach obtain effective longitudinal stiffness composite, function misalignment, described. An experimental study characterises internal structure mechanical composite tension, compression, Mode I & II interlaminar fractures. paper, validation examples criteria, implemented Abaqus/Explicit VUMAT subroutine, presented. Tensile, compressive responses modelled at coupon level continuum shell elements correlate well data. Fibre mainly out-of-plane, had strong influence on modulus strength