Identification of parameters of a bi-linear cohesive-zone model using analytical solutions for mode-I delamination

A novel parameter identification method for a bi-linear cohesive-zone model (CZM), based on closed-form analytical solutions for mode-I delamination in a double cantilever beam (DCB), is proposed. The parameters to be identified are the area under the traction-separation law of the CZM, the maximum traction and the initial (linear-elastic) stiffness. Using the three-phase analytical solution, each parameter is identified separately from a...