Novel computational models for failure analysis shells: smeared-based crack and delamination models

Fracture phenomena in shells are of critical importance in many engineering applications, since they can notably limit the performance of their corresponding structural systems. This seminar is devoted to the presentation of novel failure analysis in thin-walled structures relying on novel computational methods. In particular the main numerical strategies under consideration comprise: (1) the formulation of a consistent anisotropic damage model for laminated fiber-reinforced composites relying on the 3D-version of the Puck failure criterion, (2) a new phase field model of brittle fracture for large deformation analysis of shells relying on a mixed enhanced assumed strain (EAS) formulation, (3) the analysis of buckling-induced delamination events. Several applications show the predictive capabilities and robustness of the developed numerical methods.