Effective mechanical properties of nanocomposites reinforced with wavy carbon nanotubes

Abstract

Carbon nanotubes (CNTs) possess exceptional mechanical properties and are therefore suitable reinforcements for composite materials. Nanotube efficiency in reinforcing the matrix depends on the CNT alignment, volume fraction and configuration, as well as matrix properties. In this investigation, finite element method (FEM) is used to investigate the effects of nanotube waviness ratio, volume fraction, and matrix modulus on properties of CNT based polymer nanocomposites. Nanocomposite mechanical properties are evaluated using a 3D nanoscale representative volume element. Models consisting of CNTs with different waviness ratios are created to investigate the effects of nanotube configuration on nanocomposite mechanical properties. Next, the effect of nanotube volume fraction on nanocomposite moduli of elasticity is investigated. Finally, the effects of matrix modulus are investigated by analysing models consisting of matrices with different moduli. The results of this investigation are compared with those found in the literature and good agreement is observed.

The recent progress of functionally graded CNT reinforced composites and structures

“…Within the model, a 3D compu-tational RVE containing a single continuous long sinusoidal CNT was used for computing the strain concentration tensor A, while the MT model was adopted for the prediction of the effective modulus utilizing the tensor A. Using also the computational RVE model with one CNT, the effect of CNT orientation [86], the geometrical parameters, as well as the interface status [87][88][89][90], the volume fraction and aspect ratio of CNT [91], and the waviness of CNT [92,93] on the mechanical properties were also investigated.…”

Numerical characterisation of fullerene based polymer nanocomposites considering interface effects

“…[7][8][9][10][11] In recent years, much attention has been given to experimental and numerical characterisation of CNT and fullerene based polymer nanocomposites. [12][13][14][15][16][17][18] Pikhurov and Zuev 15 investigated the effect of fullerene C 60 on the mechanical and dielectrical behaviour of epoxy resins at low loading. Shojaie and Golestanian 19 investigated the influence of CNT/matrix interface properties on nanocomposite mechanical properties.…”

شبیه‌سازی و بررسی نانو کامپوزیت پلیمری تقویت‌شده با نانولوله‌های کربنی و نانو هلیکال‌های کربنی

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