A coupled mix-mode cohesive law based on a cylindrical potential function

A novel mixed-mode cohesive law derived from a potential function is presented. The formulated using physical parameters that can be extracted any fracture mechanics test capable of providing R-curves in terms the J-integral as normal and tangential end-openings. proposed able to describe behaviour composites with large process zones, including fibre bridging. As such, it describing both crack tip, well bridging region. An important aspect formulation shape laws are not assumed. was tested synthetic data emulating tests. tractions method exhibited characteristics which were seeded on model such negative under pure mode shear loading non-zero loading.