Experimental and numerical approach to study mechanical and fracture properties of high-density polyethylene carbon nanotubes composite

Arora, Gaurav; Pathak, Himanshu

doi:10.1016/j.mtcomm.2019.100829

Cited by 31 publications

(9 citation statements)

References 33 publications

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“…It should be mentioned at this point that by using the computed density of the pure PE at 300 K presented in Figure 5a and combining Equations ( 3) and ( 5), it may easily be proved that the OC SWCNT mass fraction of 20% corresponds to a volume fraction of about 8.6%. The reported experimental elastic modulus value at room temperature for the above-described MWCNT/HDPE NC is 7.86 GPa [35], which is in good agreement with the present numerical prediction of 8.09 GPa concerning the OC SWCNT/PE NC case.…”

Section: Resultssupporting

confidence: 91%

“…Thus, straightforward comparisons between the present results and corresponding experimental ones using the same NC design parameters may not be provided. Therefore, only a qualitative comparison is attempted with an experimental measurement regarding the elastic modulus of high-density PE (HDPE) reinforced with multi-walled CNTs (MWCNTs), having lengths of 10–30 μm and diameters of 5–15 nm, at a 10% volume fraction [ 35 ]. The specific experimentally tested volume fraction is comparable with the one investigated here.…”

Section: Resultsmentioning

confidence: 99%

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Thermomechanical Behavior of Bone-Shaped SWCNT/Polyethylene Nanocomposites via Molecular Dynamics

Giannopoulos

Georgantzinos

2021

Materials

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In the present study, the thermomechanical effects of adding a newly proposed nanoparticle within a polymer matrix such as polyethylene are being investigated. The nanoparticle is formed by a typical single-walled carbon nanotube (SWCNT) and two equivalent giant carbon fullerenes that are attached with the nanotube edges through covalent bonds. In this way, a bone-shaped nanofiber is developed that may offer enhanced thermomechanical characteristics when used as a polymer filler, due to each unique shape and chemical nature. The investigation is based on molecular dynamics simulations of the tensile stress–strain response of polymer nanocomposites under a variety of temperatures. The thermomechanical behavior of the bone-shaped nanofiber-reinforced polyethylene is compared with that of an equivalent nanocomposite filled with ordinary capped single-walled carbon nanotubes, in order to reach some coherent fundamental conclusions. The study focuses on the evaluation of some basic, temperature-dependent properties of the nanocomposite reinforced with these innovative bone-shaped allotropes of carbon.

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Section: Resultssupporting

confidence: 91%

Section: Resultsmentioning

confidence: 99%

Thermomechanical Behavior of Bone-Shaped SWCNT/Polyethylene Nanocomposites via Molecular Dynamics

Giannopoulos

Georgantzinos

2021

Materials

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“…The numerical technique of ROM is also implemented in the case of the Al6061 T6 matrix to check its deviation with MFH models. Figure 6 24 , 25 represents the process flow for the determination of effective material properties and subsequent macro-level modelling employed in ABAQUS/CAE for crack propagation study.…”

Section: Numerical Simulations: Validations Results and Discussionmentioning

confidence: 99%

Meso–macro-scale computational analysis of boron nitride nanotube-reinforced aluminium and epoxy nanocomposites: A case study on crack propagation

Padmanabhan

Gupta

Arora

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part L:

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In this paper, an outline of mean-field homogenization and fracture toughness of boron nitride nanotube-reinforced aluminium and epoxy composites have been presented. The meso-scale material modelling has been achieved using Mori-Tanaka and double inclusion homogenization schemes. To examine the effectiveness of Mori-Tanaka and double inclusion schemes, a comparison has been drawn with the rule of mixture. Meso-scale numerical results of boron nitride nanotube-reinforced aluminium and epoxy composites are presented for various design parameters such as aspect ratio and volume fraction of boron nitride nanotubes. The validation studies of the developed transversely isotropic composites model have been documented with the experiments performed and existing literature. Finally, macro-scale fracture toughness simulations incorporating the transversely isotropic properties have been performed using the domain integral method. It is observed that aluminium and epoxy with elastoplastic and viscoelastic nature, respectively, have shown a significant effect on the fracture properties of the composites.

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“…Bacciocchi 233 analysed buckling loads in a 3-phase composite of CNT, polymer, and fibre addressing the influence of non-uniform distribution of fibres along the thickness on the critical buckling load. Power law function was used to define the nonuniform features, which were shown to have a significant D-0.8-15nm,L-10nm-30 µm FEM 0.9-250GPa 49,56,76,161,165,173,176,180,188,190,194,200,204,205,211,215,218,219,222,223,255,258,259,262 D-0.9-30nm,L-12.19nm-30µm, RVE scale-5-110 µm Multiscale 1-225GPa 120,161,165,188,190,200,205,207,212,215,218,219,222,223,257 impact on the buckling response of laminated flat panels. Tsai et al 234 analysed the effect of CNT buckling on CNT reinforced copper matrix composite by characterizing the composite using high-resolution transmission electron microscopy and further analysis based on MD simulations.…”

Section: Modelling Of Damage Failure and Instabilities And Interactio...mentioning

confidence: 99%

Mechanical behaviour of carbon nanotube composites: A review of various modelling techniques

Sahu,

Harursampath,

Ponnusami

2023

Journal of Composite Materials

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This study aims to review and highlight the important modelling methodologies used for studying carbon nanotubes (CNTs) and their composites. Understanding appropriate modelling methods for specific applications is crucial as CNTs become integral in achieving lighter, multifunctional composite structures. This paper explores a range of techniques, including finite element modelling (FEM), Molecular Dynamics (MD), Molecular Structural Mechanics (MSM), as well as nonlocal models, and the Cauchy-Born (CB) rule. Emphasis is placed on factors such as interphase effects between CNTs and the matrix, bonding interactions, non-bonded van der Waals (vdW) forces, and dynamic behaviour. Multiscale modelling is extensively discussed as a pivotal approach for efficiently addressing various length scales in nanocomposites. Modelling of failure, damage and its propagation, delamination, and instabilities such as buckling and fracture have been highlighted, and research gaps have been pointed out.

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Experimental and numerical approach to study mechanical and fracture properties of high-density polyethylene carbon nanotubes composite

Cited by 31 publications

References 33 publications

Thermomechanical Behavior of Bone-Shaped SWCNT/Polyethylene Nanocomposites via Molecular Dynamics

Thermomechanical Behavior of Bone-Shaped SWCNT/Polyethylene Nanocomposites via Molecular Dynamics

Meso–macro-scale computational analysis of boron nitride nanotube-reinforced aluminium and epoxy nanocomposites: A case study on crack propagation

Mechanical behaviour of carbon nanotube composites: A review of various modelling techniques

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