Multiscale hybrid atomistic-FE approach for the nonlinear tensile behaviour of graphene nanocomposites

Mechanical properties of graphene nanocomposites: A multiscale finite element prediction

“…They also computed, within the same method, the elastic constants of CNT-reinforced polymer composite and compared them with those of the GSreinforced case. A multiscale approach to simulate the tensile properties of graphenereinforced nanocomposites was also described by Chandra et al [28]. Their model described the graphene system with a FE atomistic model represented by higher order Timoschenko beam elements.…”

Graphene reinforced nanocomposites: 3D simulation of damage and fracture

“…The effect of the graphene aspect ratio on the composite properties, observed in section 4.2 is relatively weak: only 26% higher stiffness as a result of the 20 times higher aspect ratio. However, this corresponds also to results by Chandra et al [17], who observed that "… the stress-strain curves obtained do not show a considerable dependence of the results on the length of the graphene reinforcement".…”

“…So, Motazeri and Rafii-Tabar [11] employed a combined method, based on the molecular dynamics, molecular structural mechanics, and FEM, and determined the elastic constants of nanocomposites. Chandra et al [17] used a multiscale FEM modeling approach to analyze the mechanical behavior of nanocomposites, and evaluate the effect of the orientation of graphene sheet on the stiffness of the composite. On the basis of the shear lag analysis, Young et al [5] that efficient reinforcement can be realized only if the size of flake is large enough (more than 30 µm).…”

Response of graphene reinforced concrete to the external compressive load: A multiscale approach

“…Having the outstanding mechanical properties, carbon nanotubes (CNTs) and graphene sheets are considered as great candidates to be used as the reinforcement phase in the nanocomposites. Hence, the physical properties of the nanocomposites have extensively been investigated to make clear their efficiency in improving the properties of the pure materials . Investigating the mechanical properties of the graphene reinforced epoxy, Rafiee et al showed that Young's modulus, tensile strength and mode I fracture toughness of the graphene–epoxy matrix with only 0.1 ± 0.002% weight fraction of the graphene are respectively 31, 40, and 53% larger than the pure epoxy.…”