Nonlinear axisymmetric dynamic buckling of functionally graded graphene reinforced porous nanocomposite spherical caps

Haboussi, Mohamed; Sankar, A.; Ganapathi, M.

doi:10.1080/15376494.2018.1549296

Cited by 43 publications

(4 citation statements)

References 72 publications

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“…In a different study, Gholami and Ansari [144] studied the stability and frequency characteristics of GPLR nanocomposite plates using variational DQM (VDQM) and the nonlinear expansion of higher-order plate theory. Additionally, Haboussi, Sankar, and Ganapathi [145] conducted a FE-based analysis to determine the dynamic buckling load of spherical shells reinforced by GPLs using higher-order kinematic theories in the presence of a pressure on the structure. Qaderi, Ebrahimi, and Seyfi [146] conducted the damped frequency analysis of FG-GPLR nanocomposite beams supported on a three-parameter viscoPasternak medium using a higher-order beam model.…”

Section: Nanocomposites (Gplr)mentioning

confidence: 99%

An Overview of modeling of nano-composite materials and structures

Alhakeem¹

2022

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The research conducted by many scientists and engineers on nanocomposite materials and continuous systems made from such materials will be reviewed historically in this article by the writers. Nano composites are a form of well-known composite material that has been improved by adding nanoscale fibers and/or particles for reinforcement. These materials may be more appropriate for industrial applications that require material qualities that are noticeably improved. In other words, because of the improved properties of materials at the nanoscale, the material properties of nanocomposites are superior to those of macroscale composites. Designers are using these materials more frequently than traditional composite materials as constituent parts in aerospace, mechanical, and automotive applications. In order to forecast how buildings made of these materials will behave under actual operating conditions, it is crucial to be aware of the research that has been done in this field. The mechanical analyses carried out on various nanocomposite structures, such as those reinforced with carbon nanotubes (CNTR), graphene (GR), graphene platelets (GPLR), graphene oxide (GOR), and multi-scale hybrid (MSH) nano-composite ones, will be reviewed in the sections that follow, along with the most significant aspects of the suggested scientific activities.

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Section: Nanocomposites (Gplr)mentioning

confidence: 99%

An Overview of modeling of nano-composite materials and structures

Alhakeem¹

2022

Brilliance

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“…Novel theoretical shear deformation theories were applied in Refs. [ 51 , 52 ] to treat the buckling response of isotropic and orthotropic shallow spherical caps, whose problem was solved analytically by means of Chebychev series [ 51 ], or numerically according to classical finite elements [ 52 ]. At the present state, however, there is a general lack of works from the literature focusing on the dynamic buckling of GPL-reinforced porous nanocomposite spherical shells, whose aspects are explored here according to the 3D elasticity basics and Green deformation nonlinearities, rather than common shell theories and Von-Karman nonlinearities, as proposed in [ 53 ].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on the Buckling Behavior of FG Porous Spherical Caps Reinforced by Graphene Platelets

et al. 2023

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The buckling response of functionally graded (FG) porous spherical caps reinforced by graphene platelets (GPLs) is assessed here, including both symmetric and uniform porosity patterns in the metal matrix, together with five different GPL distributions. The Halpin–Tsai model is here applied, together with an extended rule of mixture to determine the elastic properties and mass density of the selected shells, respectively. The equilibrium equations of the pre-buckling state are here determined according to a linear three-dimensional (3D) elasticity basics and principle of virtual work, whose solution is determined from classical finite elements. The buckling load is, thus, obtained based on the nonlinear Green strain field and generalized geometric stiffness concept. A large parametric investigation studies the sensitivity of the natural frequencies of FG porous spherical caps reinforced by GPLs to different parameters, namely, the porosity coefficients and distributions, together with different polar angles and stiffness coefficients of the elastic foundation, but also different GPL patterns and weight fractions of graphene nanofillers. Results denote that the maximum and minimum buckling loads are reached for GPL-X and GPL-O distributions, respectively. Additionally, the difference between the maximum and minimum critical buckling loads for different porosity distributions is approximately equal to 90%, which belong to symmetric distributions. It is also found that a high weight fraction of GPLs and a high porosity coefficient yield the highest and lowest effects of the structure on the buckling loads of the structure for an amount of 100% and 12.5%, respectively.

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“…8 The GPL reinforcement shows a remarkable improvement in mechanical properties as was demonstrated in previously reported experimental studies. 9,10 Owing to these remarkable discoveries, FGP-GPL reinforced porous composites have drawn tremendous interest from both academia and industry in the past years and the deterministic analysis related to beams, [11][12][13][14][15][16][17][18][19][20] plates, [21][22][23][24] and shells [25][26][27][28][29][30] are well established.…”

Section: Introductionmentioning

confidence: 99%

“…Equation (30) represents the thermal resultant occurring due to the temperature rise in the beam Hence, the total work done for the whole domain having ''nel'' number of elements is expressed as…”

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Influence of material uncertainties on thermo-elastic vibration characteristics of graphene reinforced functionally graded porous beams

Mohd

Talha

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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This paper aims to study the influence of material uncertainties on thermo-elastic vibration response of functionally graded porous (FGP) beams reinforced with graphene platelets (GPLs) using the perturbation-based stochastic finite element method. The influence of material uncertainty on the vibration behavior of FGP-GPL reinforced beams subjected to thermal loading conditions have been discussed for low variability (randomness) in material design parameters (porosity content, amount of nanofillers) and material properties (Young’s modulus, density of metal matrix, and nanofillers) respectively. A C0 continuous stochastic finite element formulation based on higher-order shear deformation theory has been formulated. The convergence and validation of the present formulation have been compared with a traditional Monte-Carlo simulation to establish the accuracy of the present methodology. The homogenized effective material properties are estimated using the Halpin-Tsai micromechanics model and Voigt’s rule of mixture and are typically assumed to be varying along the thickness direction. The results highlighting the effect of uncertainty in material properties on the thermo-elastic vibration response of FGP-GPL reinforced beams have been discussed thoroughly.

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Nonlinear axisymmetric dynamic buckling of functionally graded graphene reinforced porous nanocomposite spherical caps

Cited by 43 publications

References 72 publications

An Overview of modeling of nano-composite materials and structures

An Overview of modeling of nano-composite materials and structures

Numerical Study on the Buckling Behavior of FG Porous Spherical Caps Reinforced by Graphene Platelets

Influence of material uncertainties on thermo-elastic vibration characteristics of graphene reinforced functionally graded porous beams

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