Predicting the nonlinear tensile behavior of carbon nanotubes using finite element simulation

Mohammadpour, Ehsan; Awang, Mokhtar

doi:10.1007/s00339-011-6385-1

Cited by 25 publications

(12 citation statements)

References 21 publications

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“…A C C E P T E D ACCEPTED MANUSCRIPT 12 In order to obtain the cross-sectional value A for the case of hetero-junctions, the assumption of series springs is applied. Therefore, the A value for hetero-junctions is defined as:…”

Section: A N U S C R I P Tmentioning

confidence: 99%

On the tensile behavior of hetero-junction carbon nanotubes

Yengejeh

Zadeh

Öchsner

2015

Composites Part B: Engineering

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Section: A N U S C R I P Tmentioning

confidence: 99%

On the tensile behavior of hetero-junction carbon nanotubes

Yengejeh

Zadeh

Öchsner

2015

Composites Part B: Engineering

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“…Most of the numerical simulation studies towards the evaluation of the CNTs mechanical properties concern with the determination of their rigidity and Young's modulus by means of tensile and bending tests (see, for example [11,[20][21][22][23]). 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.…”

mentioning

confidence: 99%

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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“…In this method, atomistic structures of CNTs and the interaction forces between carbon atoms were simulated through FEA. Besides, nonlinear tensile stress-strain curve for C-C bonding was employed as input parameters, instead of using constant material parameters, to study the tensile properties of SWCNT [10][11][12][13]. The advantage of this process is to consider the variations in the stiffness of C-C bonds, resulting from the changes of distance between carbon atoms when subjecting to a tensile loading.…”

Section: Accepted Manuscriptmentioning

confidence: 99%

Stress transfer properties of carbon nanotube reinforced polymer composites at low temperature environments

Jia

Lam

Cheng

et al. 2016

Composites Part B: Engineering

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Multi-scale modeling method was used to study tensile properties of single-walled carbon nanotube (SWCNT) and double-walled carbon nanotube (DWCNT) reinforced polymer-based composites at room temperature (RT) and cryogenic temperature (like liquid nitrogen temperature 77K) conditions. At RT, Young's Modulus of a SWCNT M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT reinforced polymer composite is 1.88 times of a DWCNT reinforced polymer composite due to a weak interfacial bonding between layers of DWCNT, which is bound by the weak Van der Waal interaction. The Young's Modulus of DWCNT reinforced polymer composite is significantly improved with the decrease of temperature and the difference in Young's Modulus between SWCNT and DWCNT reinforced polymer composites has been largely reduced. The radial stress imposed on an outer surface of nanotubes due to the contraction of polymer at liquid nitrogen environment is examined to explain the stress transfer mechanism in a composite system. The extra stresses imposed on the surface of DWCNT increase bonding forces between outer and inner layers of DWCNT. This tendency agreed well with experimental results found in other literatures.

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Predicting the nonlinear tensile behavior of carbon nanotubes using finite element simulation

Cited by 25 publications

References 21 publications

On the tensile behavior of hetero-junction carbon nanotubes

On the tensile behavior of hetero-junction carbon nanotubes

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

Stress transfer properties of carbon nanotube reinforced polymer composites at low temperature environments

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