Starting from the exact solution of heterogeneous linear viscoelastic Eshelby ellipsoidal inclusion problem obtained in time domain for an embedded isotropic matrix (Berbenni et al., 2015), a direct time-incremental homogenization Mori–Tanaka scheme two-phase non elasto-viscoplastic materials is proposed. The extension to non-linear behavior based on “modified secant” formulation obtain compari...

Biocomposites based on thermoplastic polymers and natural fibers have recently been used in wind turbine blades, to replace non-biodegradable materials. In addition, carbon nanofillers, including nanotubes (CNTs) graphene nanoplatelets (GNPs), are being implemented enhance the mechanical performance of composites. this work, Mori–Tanaka approach is for homogenization a polymer matrix reinforced...

In this paper, a refined plate theory is applied to investigate the free vibration analysis of functionally graded nanocomposite sandwich plates reinforced by randomly oriented straight carbon nanotube (CNT). The refined shear deformation plate theory (RSDT) uses only four independent unknowns and accounts for a quadratic variation of the transverse shear strains across the thickness, and satis...

The recently developed variational framework for polarization methods in nanocomposites is applied to the determination of a lower-bound on the shear modulus of a nanocomposite with monosized, spherical inclusions. This bound explicitly accounts for linear elastic effects in the matrix-inclusion interface. Even if the polarization fields involved in its derivation are much more intricate, this ...

Abstract Vibration analysis of functionally graded (FG) microbeams carrying a moving mass is carried out in the framework Timoshenko beam theory. The material properties are considered to be thickness by power-law function, and they estimated Mori-Tanaka scheme. influence microsize effect captured with aid modified couple stress theory (MCST). A finite element formulated used establish discreti...

in this study, dynamic buckling of embedded laminated nanocomposite plates is investigated. the plates are reinforced with single-walled carbon nanotubes (swcnts) where to obtain the equivalent material properties of them, mori-tanaka model is applied. based on the sinusoidal shear deformation theory (ssdt), the motion equations are derived using energy method and hamilton's principal. the...

In literature, the concept of material gradation is shown to inhibit surface crack initiation in glass/ceramic composites subjected Hertzian indentation. However, cracks could yet initiate due relatively higher loadings or presence flaws/defects. Hence, characterization graded concerning resistance against and propagation manifests itself as a prominent matter. this study, axisymmetric evolving...

The objective of this paper is to predict the different damage mechanisms in multiple scales that can occur a cross ply composite material loaded uniaxial tension. simulated consists four epoxy-glass fibre layers [0/90]s and each layer transversely isotropic with viscous effects occurred from micromechanical homogenization using Mori-Tanaka formulation, extended for visco-elastic materials. For...

The main aim of this paper is to investigate bending behavior in sandwich plates with functionally graded carbon nanotube reinforced composite (FG-CNTRC) face sheets with considering the effects of carbon nanotube (CNT) aggregation. The sandwich plates are assumed resting on Winkler-Pasternak elastic foundation and a mesh-free method based on first order shear deformation theory (FSDT) is devel...