Font Size: 

The present paper deals with parameter identification of interface models conceived for the simulation of decohesion phenomena in layered composites. Specifically, a visco-plastic interface model is considered, which depends on nine material parameters. The extended Kalman filter for discrete time problems is adopted to solve the inverse problem. In order to reduce the difficulties related to the computation of the sensitivity to the model parameters, a simplified procedure is used which is based on a priori interpolation of the response functions in the model parameter space.