ABSTRACT
Delamination is a progressive separation of bonded laminate and, simultaneously, degradation of the used adhesive. The mechanism of delamination is very complex and involves phenomena like debonding and unilateral contact with nonmonotone friction. In the recent literature, the modeling of the delamination problem is generally approached either by using fracture mechanics (see, e.g., [3, 20]) or by introducing special constitutive laws for the interface material in the spirit of damage mechanics, or simply quasistatically. In the second approach, delamination is described by a damage variable reflecting the destruction of the bonds in the a priori known delamination surface (see, e.g., [5, 17]).
