Mechanical characterization of single-walled carbon nanotubes: Numerical simulation study

Сахарова, Н. А.; Pereira, André F. G.; Antunes, Jorge M.; Brett, Christopher M.A.; Fernandes, J.V.

doi:10.1016/j.compositesb.2015.01.014

Cited by 53 publications

(76 citation statements)

References 55 publications

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“…This makes such representation more suitable for further analyses than when the torsional rigidity is plotted as a function of (nþm), identically to previously observed for the tensile and bending rigidities [24]. In Fig.…”

Section: Loading Conditionssupporting

confidence: 52%

“…It has been recently concluded [24] that regardless of chirality, the evolution of the tensile rigidity as a function of the carbon nanotube diameter can be unified by a single equation; the same was concluded for the bending rigidity. Furthermore, given a certain value of the wall thickness, the Young's modulus is about the same, whatever the chirality of the nanotube.…”

mentioning

confidence: 84%

“…1, for the cases of armchair (10,10) and (20,20), zigzag (10, 0) and (20,0) and chiral (10,2) and (24,12) SWCNTs. In these examples, as in all cases of Table 1, the values of the rigidity are quite stable with the nanotube length.…”

Section: Loading Conditionsmentioning

confidence: 99%

“…This equation is of the same type as those previously proposed for non-chiral SWCNTs [15], but replacing the chiral index, n, by the SWCNT diameter, D n . Furthermore, a cubic equation relating the bending rigidity to the diameter of the nanotube has been successfully tested [24]. It remains to note that the cubic function expressed by the above equation can be understood on the base of the quasicubic relationship between the polar moment of inertia and the nanotube diameter (see Eq.…”

Section: Loading Conditionsmentioning

confidence: 99%

“…A robust methodology for determining the elastic moduli of SWCNT involves using of the rigidities under different mechanical tests [24]. This allows the appropriate assessment of the mean diameter of SWCNT, D. In fact, the knowledge of the tensile and bending nanotube rigidities, EA and EI, respectively, allows determining D, taking into account the cross-sectional area, A, and the moment of inertia, I, of the hollow cylinder:…”

Section: Shear Modulus Of Swcntsmentioning

confidence: 99%

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Shear modulus and Poisson's ratio of single‐walled carbon nanotubes: Numerical evaluation

Pereira

Fernandes

Antunes

et al. 2015

Physica Status Solidi (b)

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The mechanical behaviour of non-chiral and chiral singlewalled carbon nanotubes under torsional loading is studied. For this purpose, three-dimensional finite element modelling is used in order to evaluate the torsional rigidity and shear modulus. It is shown that the evolution of torsional rigidity as a function of nanotube diameter can be described by a unique function for non-chiral and chiral single-walled nanotubes. A comprehensive study to evaluate the Poisson's ratio of singlewalled carbon nanotubes is also carried out. Two robust methodologies, one for evaluating the shear modulus from results of tensile, bending and torsion tests, and the other to assess Poisson's ratio from results of bending and torsion tests, are recommended.

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Section: Loading Conditionssupporting

confidence: 52%

mentioning

confidence: 84%

Section: Loading Conditionsmentioning

confidence: 99%

Section: Loading Conditionsmentioning

confidence: 99%

Section: Shear Modulus Of Swcntsmentioning

confidence: 99%

See 3 more Smart Citations

Shear modulus and Poisson's ratio of single‐walled carbon nanotubes: Numerical evaluation

Pereira

Fernandes

Antunes

et al. 2015

Physica Status Solidi (b)

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Modeling the interphase region in carbon nanotube‐reinforced polymer nanocomposites

et al. 2018

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Carbon nanotubes are regarded as ideal fillers for polymeric materials due to their excellent mechanical properties. Mechanical analysis without consideration of nanotube–matrix interphase, may not give precise predictions. In this work, the impacts of interphase on the behavior of polymer‐based nanocomposites are studied. For this purpose, a closed‐form micromechanical interphase model considering the diameter of nanotube, the thickness of interphase, and mechanical properties of nanotube and polymer is proposed to estimate the overall mechanical properties of nanotube‐reinforced polymer nanocomposites. Furthermore, the effective elastic constants of the nanocomposites for a wide range of diameters and volume fractions of nanotubes, evaluated via the suggested interphase model, are compared with the results of molecular dynamics simulations. Thereafter, the effects of diameter, length and volume fraction of nanotubes on the mechanical properties of nanocomposites are investigated using the suggested model. The results indicate that mechanical properties of nanocomposites are significantly influenced by the interphase. POLYM. COMPOS., 40:E1219–E1234, 2019. © 2018 Society of Plastics Engineers

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Numerical Investigation on the Influence of Doping on Tensile Properties of Carbon Nanotubes

Ahani

Öchsner

2020

Advanced Structured Materials

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Mechanical characterization of single-walled carbon nanotubes: Numerical simulation study

Cited by 53 publications

References 55 publications

Shear modulus and Poisson's ratio of single‐walled carbon nanotubes: Numerical evaluation

Shear modulus and Poisson's ratio of single‐walled carbon nanotubes: Numerical evaluation

Modeling the interphase region in carbon nanotube‐reinforced polymer nanocomposites

Numerical Investigation on the Influence of Doping on Tensile Properties of Carbon Nanotubes

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