Effect of interphase, curvature and agglomeration of SWCNTs on mechanical properties of polymer-based nanocomposites: Experimental and numerical investigations

Maghsoudlou, Mohammad Ali; Barbaz‐Isfahani, Reza; Saber‐Samandari, Saeed; Sadighi, Mojtaba

doi:10.1016/j.compositesb.2019.107119

Cited by 109 publications

(46 citation statements)

References 61 publications

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“…Also, when CNTs can be dispersed effectively, only at relatively low loading levels of 0.1 to 0.5 wt.% significant increase in mechanical properties of polymer matrices has been reported and by increasing the weight percent of loaded CNT, the properties decreased. The same trend was reported by previous studies as well (Maghsoudlou et al 2019, Monfared, Ayatollahi and Isfahani 2018, Pötschke et al 2003, Ren et al 2003. Zhu et al (2004) showed that increasing wt.% of CNTs does not always enhance all mechanical properties of composites.…”

Section: Introductionsupporting

confidence: 88%

Influence of carbon nanotubes on thermal expansion coefficient and thermal buckling of polymer composite plates: experimental and numerical investigations

Kamarian

Bodaghi

Barbaz‐Isfahani

et al. 2019

Mechanics Based Design of Structures and Machines

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The first aim of this paper is to experimentally explore the effect of multi-walled carbon nanotubes (MWCNTs) on the coefficient of thermal expansion (CTE) of epoxy-based composites. Focusing on the obtained experimental data, two important conclusions can be drawn. 1) Though the CTE of carbon nanotubes (CNTs) is lower than that of neat epoxy, using more CNT does not necessarily decrease the CTE of epoxy polymer. 2) The optimum weight percent of CNT is 0.3 which can reduce the CTE of epoxy up to 33%. As the second goal of the present research work, thermal buckling analysis of rectangular carbon fiber-reinforced CNT/epoxy polymer (CFRCNTEP) laminated composite plates is performed numerically. To this purpose, first, using the obtained experimental data and micro-mechanical models, the thermo-elastic properties of structure are calculated. Then, based on the first-order shear deformation theory (FSDT) and by means of generalized differential quadrature (GDQ) method, the influence of CNTs on the critical buckling temperature of CFRCNTEP composite plates is investigated. The numerical results reveal that MWCNTs can strongly affect thermal buckling behavior of composite plates. It is observed that by adding 0.3 wt% CNTs into the matrix phase, the critical buckling temperature increases between 35 to 42%.

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Section: Introductionsupporting

confidence: 88%

Influence of carbon nanotubes on thermal expansion coefficient and thermal buckling of polymer composite plates: experimental and numerical investigations

Kamarian

Bodaghi

Barbaz‐Isfahani

et al. 2019

Mechanics Based Design of Structures and Machines

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“…In the second case, bisphenol-F epoxy resin reinforced with CNT fibres (10% V F ) has been used to compare the results given by Maghsoudlou et al. 23 Maghsoudlou et al. 23 carried-out experimental investigation along with FE-based simulations to yield the results.…”

Section: Numerical Simulations: Validations Results and Discussionmentioning

confidence: 99%

“…23 Maghsoudlou et al. 23 carried-out experimental investigation along with FE-based simulations to yield the results. In the last case, brass reinforced with BNNT fibres (5% V F ) has been taken, and the obtained results are compared with the results obtained by Trivedi et al.…”

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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“…Over last decade, there has been a great deal of research to investigate the influence of CNTs on mechanical, thermal and electrical properties of polymers showing that only a small amount of this material, often less than 0.5 weight-percent (wt. %), can have a significant improvement for the composite properties (He et al 2018;Kamarian et al 2019;Maghsoudlou et al 2019;Rahman et al 2012a ;Zhu et al 2004). Siddiqui et al (2009) showed that 0.3 wt.% CNT-epoxy nanocomposite coating could lead to a significant increase in tensile strength of the single fiber for all gauge lengths, better than the neat epoxy coating.…”

Section: Introductionmentioning

confidence: 99%

A comparison between the effects of shape memory alloys and carbon nanotubes on the thermal buckling of laminated composite beams

Kamarian

Bodaghi

Barbaz‐Isfahani

et al. 2020

Mechanics Based Design of Structures and Machines

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One of the essentials for designing composite structures exposed to heat is the correct choice of reinforcing materials. In the present research work, a comparison is made between the performances of two well-known advanced materials, Shape Memory Alloys (SMAs) and Carbon Nanotubes (CNTs), in thermal bucking behavior of thin composite beams with simply supported boundary conditions. First, the effect of embedding SMA wires on the thermal buckling of laminated composite beams are examined. The stability equations are derived based on Timoshenko Beam Theory (TBT), and the critical buckling temperatures are obtained analytically. The advantages and disadvantages of using SMA wires as well as their proper functional range are studied. Then, in the next step, the influence of CNTs on the thermal buckling response of composite beams is presented. To this end, the results of some experiments such as Dynamic Mechanical Thermal Analysis (DMTA) and Thermo-Mechanical Analysis (TMA) tests are used to obtain thermal properties of CNT-reinforced composite materials. The performance of CNTs is also evaluated in comparison with SMA wires. It is found from the analysis that, depending on the structural conditions, one reinforcing material can outperform the other. Finally, the idea of simultaneous use of both reinforcing materials comes up. The results show that, in some circumstances, the use of only one of the SMAs or CNTs does not have significant effect on the thermal buckling of composite beams, but applying both of these advanced reinforcing materials in the composite medium can extraordinarily enhance the critical buckling temperatures.

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Effect of interphase, curvature and agglomeration of SWCNTs on mechanical properties of polymer-based nanocomposites: Experimental and numerical investigations

Cited by 109 publications

References 61 publications

Influence of carbon nanotubes on thermal expansion coefficient and thermal buckling of polymer composite plates: experimental and numerical investigations

Influence of carbon nanotubes on thermal expansion coefficient and thermal buckling of polymer composite plates: experimental and numerical investigations

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

A comparison between the effects of shape memory alloys and carbon nanotubes on the thermal buckling of laminated composite beams

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