OGS
[case] CohesiveZoneModeI

The cohesive zone delamination model for mode I fracture introduced herein follows a bilinear traction-separation law which is characterized by four basic parameters: the initial normal and shear stiffness $$K_n$$, $$K_s$$, the fracture toughness $$G_c$$ (also referred to as critical energy release rate), and the peak tensile normal traction $$t_{n,p}$$.