Micromechanics modeling for the stiffness and strength properties of glass fibers/CNTs/epoxy composites

Abstract

This research explores micromechanics modeling for the prediction of stiffness and strength properties of nanocomposites consisting of randomly oriented carbon nanotubes (CNTs) and an epoxy matrix, and multiscale composites consisting of unidirectional glass fibers, randomly orientated CNTs, and an epoxy matrix. For stiffness properties, including Young's modulus, Poisson's ratio, and shear modulus, of CNTs/epoxy composites and glass fiber/CNTs/epoxy composites, the Mori-Tanaka model and Halpin-Tsai equations were used. To obtain the strength properties of the composites, including tensile and compressive strength, several empirical equations were employed. The estimated mechanical properties of nanocomposites were used as matrix properties in the micromechanical models for multiscale composites. The results showed that the stiffness and strength properties of nanocomposites and multiscale composites were improved by integrating CNTs in the systems.

Strengthening and stiffening carbon fiber epoxy composites by halloysite nanotubes, carbon nanotubes and silicon carbide whiskers

“…The modeling results were consistent with those of prior micromechanics modeling, which showed increases in modulus and strength due to carbon nanotube incorporation in glass fiber epoxy nanocomposites (Kim et al, 2010).…”

Nonlinear flexural analysis of sandwich beam with multi walled carbon nanotube reinforced composite sheet under thermo-mechanical loading

“…Also, Fidelus et al [2], Anumandla et al [3], Shen and Xiang [4] utilized the rule of mixture and extended rule of mixture to find the effective elastic property of the composite structure. [4][5][6][7][8][9][10][11] utilized the Halpin-Tsai approach for the effective elastic properties of the composite material which they used. The explicit formulation for the Mori-Tanaka tensor which was utilized for the unidirectional (UD) FRC in Liu and Huang [12].…”