Fiber-reinforced composite with cubic symmetry constituents

Unified formulae of variational bounds for multiphase anisotropic elastic composites

“…Although it is not shown, a comparison between the variational bounds obtained in (3.4)-(3.6) and the effective coefficients by AHM [19] for the plane bulk (k), transverse (m) and axial (µ) shears moduli reveals a very good coincidence with the lower bound in the whole range of the inclusion volume fraction for a fibrous composite (d = 2) Epoxy matrix and Aluminum fiber. The material parameters were taken from [19].…”

“…The material parameters were taken from [19]. Figure 4, shows the behavior of the bounds for axial (µ) shear modulus in a composite with spherical inclusions (d = 3).…”

“…Figure 4, shows the behavior of the bounds for axial (µ) shear modulus in a composite with spherical inclusions (d = 3). The material constituents are epoxy and aluminum [19]. The lower bound is the same with either isotropic or cubic symmetry comparison body.…”

Overall electromechanical properties of a binary composite with 622 symmetry constituents.

“…These are usually solved using numerical methods (e.g., Galka et al, 1996;Pastor, 1997;Andrianov et al, 2002). However, for a two-phase composite exact closedform effective expressions have been found for certain anisotropic materials and arrays of circular cylinders: square Bravo-Castillero et al, 2001;Valdiviezo-Mijangos et al, 2002b) and hexagonal Sabina et al, 2001;Valdiviezo-Mijangos et al, 2002a) arrays and materials with 6 mm and cubic symmetry. Recently, Silva et al (2001) have measured three electroelastic properties of two films: anionic collagen and a composite collagen-hydroxiapatite (HA).…”