Interlaminar fracture specimens are widely used for studying the interlaminar toughness of composite laminates. The goal of this paper is to analyse delamination specimens within the framework of a damage meso-modelling of composite laminates. In this type of modelling a laminate is described as a stacking sequence of homogeneous layers and interlaminar interfaces. The interface is assumed to be damageable in order to model the delamination phenomena. In the case of the propagation of a pre-existing crack, the main parameters for the interface model identification are the critical energy release rates.Delamination specimens are here modelled as two beams connected by a damageable interface. By means of a Finite Element Scheme used in connection with a Riks-like algorithm; comparisons between numerical simulation and experiments have been performed for a wide class of specimens (D.C.B., E.N.F., E.L.S.).The results show the interest of the proposed modelling, which allows a complete simulation of delamination using of relatively little experimental data.