Résumé
Cohesive Zone Models (CZMs) have gained much popularity thanks to their promising applications in numerical damage and failure simulations. Their numerical implementation in finite element schemes is based on embedding surface elements between two adjacent bulk elements. The traction between the two opposed elements is linked to the corresponding opening by a cohesive relationship [1]. Despite all the achievements in this field, some mechanical and numerical aspects still remain interesting research topics: the pathological mesh influence, the suitable calibration of the cohesive law, the link between cohesive parameters and the overall response, etc. The overall behaviour of an isotropic and elastic cohesive medium has been studied in [2] by means of micromechanical approaches. The obtained results rigorously provide some answers to the so-evocated issues. Recently, extension with a damageable interface has been done [3].