Issue 49

N. Kaddouri et alii, Frattura ed Integrità Strutturale, 49 (2019) 331-340; DOI: 10.3221/IGF-ESIS49.33 333 homogenization between mechanical properties of matrix and fibers using the software CADEC designed for materials composites (see Tab. 2). Figure 1: Geometric model. Figure 2: Some positions of adhesive defect. Materials E: Young Modulus (GPa) G: Shear modulus (GPa)  : Poisson coefficient Aluminum : 2024-T3 69 36,92 0,3 Adhesive: Adekit A-140 2,690 0,99 0,3 Table 2 : Elastic properties of the Aluminum plate and adhesive [9]. The composite patch has been modeled as successive multilayer with different orientations. This modeling will allow us to introduce the mechanical properties real for each layer based on the directions of the fibers, which is more real. In this part, it has used the equations of homogenization to determine the mechanical characteristics of Composite (see Tab.3).