Bending analysis of functionally graded graphene oxide powder-reinforced composite beams using a meshfree method

Fouaidi, Mustapha; Jamal, Mohammad; Zaite, Abdelkabir; Belouaggadia, Naoual

doi:10.1016/j.ast.2020.106479

Cited by 31 publications

(4 citation statements)

References 31 publications

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“…Consider a composite beam made from polymer matrix material reinforced with CNTs. In literature various different FG distributions of CNTs such as V-, O-, X-and -types on the cross-section of the beam have been proposed [37,38]. However, for a structural element, the beam with an I-section would be desirable because of its effectiveness in terms of the bending, which is resisted mainly by the two flanges, and shear, which is resisted largely by the web of the I-section beam.…”

Section: Mechanical Properties Of Cnts-reinforced Composite Beamsmentioning

confidence: 99%

“…In this paper, a study is carried out on the dynamic instability of CNTs-reinforced FG composite beams when subjected to axial excitation loading. Unlike the existing studies in which the V-, O-, X-and -types of FG distributions of CNTs on the cross-section of the beam were used [37,38], the present study uses an I-type FG distribution, which comes from the idea of the traditional I-section steel beams, which can provide better performance in terms of both the bending and shear behaviors. By assuming the instability modes, the kinetic energy and strain energy of the composite beams and the loss of the potential of the axially compressive load are evaluated, from which the generalized equation of motion of the CNTs-reinforced FG composite beams is derived.…”

Section: Introductionmentioning

confidence: 99%

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Dynamic stability of CNTs-reinforced non-uniform composite beams under axial excitation loading

Yuan

Jang

2022

Computational Materials Science

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Section: Mechanical Properties Of Cnts-reinforced Composite Beamsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dynamic stability of CNTs-reinforced non-uniform composite beams under axial excitation loading

Yuan

Jang

2022

Computational Materials Science

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“…One of the best choices is nanocomposites which includes a polymeric matrix enriched with various types of nanofillers such as either CNTs, [32][33][34][35][36] GNPs, [37][38][39][40] or GOPs. 41,42 Due to the strong interatomic bonds between the carbon atoms, such nanofillers benefit from extremely high elastic moduli. Meanwhile, they benefit from significantly low density.…”

Section: Introductionmentioning

confidence: 99%

Vibration characteristics of a cylindrical sandwich shell with an FG auxetic honeycomb core and nanocomposite face layers subjected to supersonic fluid flow

Amirabadi,

Darakhsh,

Sarafraz

et al. 2024

Noise & Vibration Worldwide

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In this paper, the flutter analysis is studied for a cylindrical sandwich shell subjected to external supersonic fluid flow. The sandwich shell consists of a re-entrant auxetic honeycomb (AH) core made of functionally graded materials (FGMs) which is covered with two polymeric face layers enriched with either carbon nanotubes (CNTs), graphene nanoplatelets (GNPs), or graphene oxide powders (GOPs). The volume fraction (percentage) of the ceramic phase in the functionally graded auxetic honeycomb (FGAH) core varies from zero at the inner surface to one at the outer one based on either power-law function (P-FGM), exponential function (E-FGM), or sigmoid function (S-FGM). It is assumed that the nanofillers are distributed uniformly inside the face layers. The first-order shear deformation theory (FSDT) and the piston theory are employed to provide the mathematical models of the shell and the aerodynamic pressure, respectively. The governing equations and boundary conditions are derived via Hamilton’s principle. An exact solution is performed in the circumferential direction via harmonic trigonometric functions (sine and cosine) and an approximate solution is performed in the axial direction utilizing the differential quadrature method (DQM). The natural frequencies and corresponding damping ratios are attained through the presented semi-analytical solution and the impacts of several factors on the natural frequencies and the critical aerodynamic pressure of the shell are examined. These factors the type of the FGM, the material index, and inclined angle of the cells in the FGAH core, the thickness of the FGAH core, the type and mass fraction of the nanofillers in the nanocomposite face layers, and boundary conditions.

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“…The buckling and post-buckling analyses of FGM piezoelectric plates are investigated with graphene reinforcement subjected to electric potential and axial forces [33], they concluded that the GPLs have a amplified power on the buckling and post-buckling strength of the FG-GRP plates. The bending analysis of functionally graded graphene oxide powder-reinforced composite beams have been developed using a meshfree method [34]. The vibration analysis of magnetically affected graphene oxide-reinforced nanocomposite beams were studied by [35].…”

Section: Introductionmentioning

confidence: 99%

Two phase local/nonlocal thermo elastic waves in a graphene oxide composite nanobeam subjected to electrical potential

2022

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The present article studies the two phase local/nonlocal deformation of thermo electrical composite nanobeam reinforced with graphene oxide powder (GOP).The controlling equation of motion and boundary conditions are derived via two phase elasticity in differential form in conjunction with Hamilton's principle and Euler-Bernoulli beam theory. The effect of a thermal and piezo electric field is incorporated with the governing equations by convoluting field quantities and displacement components. Then, Navier method is adopted to observe the influence of simply supported boundary conditions on the dynamics of the beam. Comparison studies are performed to display the accuracy and efficiency of this analytical model. Further, the effects of GOP weight fraction, two phase parameter, external electric voltage and temperature difference on the dimensionless frequency of GOP reinforced piezo thermo elastic composite beams are thoroughly investigated and highlighted through tables and dispersion curves.The results obtained from the present work gained the important role of GOP and thermo-piezoelectricity in predicting the vibration behaviors of two phase local/ nonlocal nanostructures.

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Bending analysis of functionally graded graphene oxide powder-reinforced composite beams using a meshfree method

Cited by 31 publications

References 31 publications

Dynamic stability of CNTs-reinforced non-uniform composite beams under axial excitation loading

Dynamic stability of CNTs-reinforced non-uniform composite beams under axial excitation loading

Vibration characteristics of a cylindrical sandwich shell with an FG auxetic honeycomb core and nanocomposite face layers subjected to supersonic fluid flow

Two phase local/nonlocal thermo elastic waves in a graphene oxide composite nanobeam subjected to electrical potential

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