Issue 53

L. Hadid et alii, Frattura ed Integrità Strutturale, 53 (2020) 1-12; DOI: 10.3221/IGF-ESIS.53.01 3 Silver bonded to alumina is selected in this study. Pure silver is defined as an elastic - plastic material (Fig. 3) with a value of the modulus of elasticity E = 81.90 GPa and Poisson's ratio ν = 0.31. The behaviour of alumina is considered as an isotropic elastic material. Alumina is assumed to be elastic with modulus of elasticity value E= 390 GPa and Poisson’s ratio ν = 0.25. Figure 1: (a) A 2–D schematic view of metal/ceramic with the site of interface defect, (b) Geometry of model, (c) Finite element mesh, (d) Boundary condition and loading condition and (e) site of interface defect-defect interaction. Figure 2: Effect of mesh size convergence on ceramic/defect interface for P = 70 MPa. Path1 U Z =0 P P (d) d (e) (a) (b) (c) Metal Ceramic Defect Y X e 1 e 2 L Interface defect