Designing of interlayers between materials with minimum stress level at the interface

Effects of singular and non‐singular stress fields on very high cycle fatigue life of adhesive joints

“…Effect of structural details on material strength and fatigue life Liao et al, 7,8 Lazzarin et al, 9 Brandt et al, 10 Camanho et al, 11 Park, 12 Ramalho et al, 13 Ikegami, 14 Barroso et al, 15 Kanani et al, 16 Akisanya et al, 18 Lefebvre, 19 and Growth 26 Analytical and/or numerical modelling of adhesive joints and stress singularity Bogy et al, 17 Williams, 43 Bogy, 20,21 England, 22 Hein et al, 23 Kelly et al, 24 Goglio et al, 25 Growth, 26 Breto, 27 Bahrami, 28 Pageau et al, 29 Volkerink et al, 30 He, 31 and Ramalho et al 32 Removal of the singularity and application to coupons Wu, [33][34][35] Xia et al, 44 Fedorov et al, 36 Liu et al, 37 Chowdhuri et al, 38 Chue et al, 39 and Liu et al 40…”

“…By means of the rearrangement of the Bogy mathematical framework, a stress singularity‐free component can be achieved as illustrated by Wu, 33,34 for 2D and by Wu 35 for 3D elastic bi‐material problems. On this basis, Xia and Ju 36 developed an innovative setup for the shear bonding strength measurement whereas Fedorov and Matveenko designed plate‐like structures achieving minimum stress levels at the material interface 37 . In this context, axisymmetric problems are usually approached under the hypothesis of the plane‐strain solution as adequate for such configurations.…”

Topological Optimization of Interconnection of Multilayer Composite Structures

“…Fedorov et al [14] proposed a method for selecting the mechanical characteristics and geometric parameters of an interlayer bond of two similar or different materials to avoid significant stress concentrations near the edges of both interfaces. They solved a number of model examples to optimize the characteristics and geometry of the adhesive layer to minimize stress concentration at the interface.…”