Issue 50

B. Benamar et alii, Frattura ed Integrità Strutturale, 50 (2019) 112-125; DOI: 10.3221/IGF-ESIS.50.11 117 Figure 5 : Detail of the mesh and interface element. Young’s modulus E 68960 MPa Poisson’s ratio ν 0.3 Elastic limit stress σ e 220 MPa Table 2 : Mechanical properties of the adherend used [1] Normal stiffness K nn 9.25 x 10 5 GN/m 3 Shear stiffness K ss = K tt 11.85 x 10 5 GN/m 3 Normal strength S nn 40 MPa Shear strength S ss = S tt 24.1 MPa Mode I fracture energy G I 0.3 N/mm Mode II fracture energy G II = G III 0.6 N/mm Table 3 : Elastic, strength and fracture properties of the adhesive used [26]. Figure 6 : Experimental stress–strain curve of the Aluminum 2024T3 [31]. The behavior of the aluminum plates used in this study is elastic-plastic. The properties introduced in the calculation code for the elastic part are mentioned in Tab. 2. Whereas for the plastic part, they are drawn directly from the curve of Fig. 6 [31]. In the assembly, the plates solicit the joint adhesive to complex behaviors at different levels. It is therefore important to take notes and analyze the lamination caused by the axial loads on the assembled system just before detachment.