Micromechanical analysis of interlaminar crack propagation between angled plies in mode I tests

This paper presents a micromechanical finite element model to study interlaminar damage propagation and relocation, known as delamination migration, between angled plies, consisting of a double-ply θ/0° Unit Cell (UC) in-between homogenised unidirectional 0° plies. Random fibre distributions and appropriate constitutive models are used to model the different dissipative phenomena that occur at crack onset and propagation. Varying the upper ply...