Accurate simulation of delamination growth under mixed-mode loading using cohesive elements: Definition of interlaminar strengths and elastic stiffness

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On cohesive element parameters and delamination modelling (2019, background): “[33-35] studied the effects of penalty stiffness in mixed-loading conditions and proposed a mode-dependent penalty stiffness for delamination.”
Computational modeling of complex failure mechanisms in laminates (2012, background): “and again for a consistent formulation under a varying mode ratio.(53) Alternative formulations have been proposed among others by Jiang et al.”
Drilling in carbon/epoxy composites: Experimental investigations and finite element implementation (2013, unknown): “[33-34]:”
Experimental and numerical studies on the impact response of damage-tolerant hybrid unidirectional/woven carbon-fibre reinforced composite laminates (2018, unknown): “To avoid using a very fine mesh, Turon et al. [56] proposed the use of a lower interface strength with a coarser mesh size, which can still accurately capture the softening behaviour ahead of the crack tip.”