Postbuckling behavior of functionally graded CNT-reinforced nanocomposite plate with interphase effect

Srivastava, Ashish Kumar; Kumar, Dinesh

doi:10.1515/nleng-2017-0133

Cited by 14 publications

(4 citation statements)

References 71 publications

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“…They found that the bending performance of polymer matrix composite significantly improved by adding a small amount of graphene platelets. Srivastava and Kumar [26] investigated the postbuckling response of the graphene-sheet-reinforced plate comprising the effect of van der Waals bonding amongst the graphene sheet and matrix. By using the FEM-based homogenization technique, the effective elastic constants of the nanocomposite were evaluated.…”

Section: Introductionmentioning

confidence: 99%

Analytical Solution for Static and Dynamic Analysis of Graphene-Based Hybrid Flexoelectric Nanostructures

Shingare

Naskar

2021

J. Compos. Sci.

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Owing to their applications in devices such as in electromechanical sensors, actuators and nanogenerators, the consideration of size-dependent properties in the electromechanical response of composites is of great importance. In this study, a closed-form solution based on the linear piezoelectricity, Kirchhoff’s plate theory and Navier’s solution was developed, to envisage the electromechanical behaviors of hybrid graphene-reinforced piezoelectric composite (GRPC) plates, considering the flexoelectric effect. The governing equations and respective boundary conditions were obtained, using Hamilton’s variational principle for achieving static deflection and resonant frequency. Moreover, the different parameters considering aspect ratio, thickness of plate, different loadings (inline, point, uniformly distributed load (UDL), uniformly varying load (UVL)), the combination of different volume fraction of graphene and piezoelectric lead zirconate titanate are considered to attain the desired bending deflection and frequency response of GRPC. Different mode shapes and flexoelectric coefficients are also considered and the results reveal that the proper addition of graphene percentage and flexoelectric effect on the static and dynamic responses of GRPC plate is substantial. The obtained results expose that the flexoelectric effect on the piezoelastic response of the bending of nanocomposite plates are worth paying attention to, in order to develop a nanoelectromechanical system (NEMS). Our fundamental study sheds the possibility of evolving lightweight and high-performance NEMS applications over the existing piezoelectric materials.

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Section: Introductionmentioning

confidence: 99%

Analytical Solution for Static and Dynamic Analysis of Graphene-Based Hybrid Flexoelectric Nanostructures

Shingare

Naskar

2021

J. Compos. Sci.

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“…Nanotechnology was applied in several research directions, and materials with different components and nanostructures were also developed to fulfill different requirements [1][2][3][4][5]. As a kind of nanomaterials, nanofibers prepared by organic or inorganic materials through the method of electrospinning were widely researched due to their advantages such as high porosity, specific surface area, and lightweight [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Antibacterial polymer nanofiber-coated and high elastin protein-expressing BMSCs incorporated polypropylene mesh for accelerating healing of female pelvic floor dysfunction

Liu

Wang

Tong

et al. 2020

Nanotechnology Reviews

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To solve the bio-inertness of widely used polypropylene (PP) mesh for treating pelvic floor dysfunction (PFD), a novel strategy of incorporation with elastin gene-transfected bone marrow stem cells (BMSCs) and antibacteria drug-loaded polylactic acid (PLA) nanofibrous mat covering layer was proposed to overcome the limitation of the pristine PP mesh. Then, a series of physicochemical and in vitro experiments were applied to investigate the improvement of the as-prepared material. The elastin protein expression was proved to be upregulated without obvious cytotoxicity influence after the gene transfection and also improved the cell migration rate. In addition, the antibacteria drug-loaded PLA nanofibrous mat on the PP mesh could efficiently inhibit bacteria and showed no significant impact on cell adhesion and proliferation. Thus, we believe that the incorporation of the elastin gene-transfected BMSCs and nanofiber-coated PP mesh would be a potential candidate in the application of female PFD.

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“…Unlike most nanomaterials, whose mechanical properties are homogeneous in macroscale [12], functionally graded materials (FGMs), first applied in aerospace structures, are deliberately manufactured to have mechanical properties with continuous spatial variations [13,14]. Recently, the concept of FGM has been introduced into the carbon nanotube-reinforced composites and some nonlinear mechanical characteristics were studied [15,16]. Nowadays, FGMs are applied widely in various structures as members or coatings [17].…”

Section: Introductionmentioning

confidence: 99%

Band gap manipulation of viscoelastic functionally graded phononic crystal

Bian

Yang

Zhou

et al. 2020

Nanotechnology Reviews

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AbstractIn this study, band gaps of SH-waves (horizontally polarized shear waves) propagating in a thermal-sensitive viscoelastic matrix are investigated. Metallic films acting as heat sources are periodically embedded into the matrix, which establishes a periodically inhomogeneous thermal field. The homogenous matrix is therefore transformed into functionally gradient phononic crystals (PCs). A three-parameter solid model is employed to describe the viscoelasticity of the present matrix. By virtue of a transfer matrix method incorporated within a laminated model, the dispersion equation of SH-waves is finally obtained, from which the band gaps are determined. The transmission spectra of a finite-periodic PC are also solved to validate the band gaps. In numerical examples, the influences of incident angles of SH-waves and viscoelasticity of matrix on band gaps are discussed first. Then the research focuses on the means to tune the band gaps by manipulating the inputted powers of heat sources. Numerical examples demonstrate that such a strategy is effective and convenient in tuning the positions and widths of band gaps. A viscous parameter, i.e., the ratio of initial-state to final-state storage moduli, significantly affects the band locations and bandwidths, while the locations of low-order band gaps hardly move with the incident angle of SH-waves. Band gaps of several orders are expected to locate in lower-frequency domain, and the total bandwidth becomes larger as the inputted heat flux increases. This paper lays theoretical foundation to manufacture viscoelastic functionally graded PCs which can be used in frequency-selective devices.

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Postbuckling behavior of functionally graded CNT-reinforced nanocomposite plate with interphase effect

Cited by 14 publications

References 71 publications

Analytical Solution for Static and Dynamic Analysis of Graphene-Based Hybrid Flexoelectric Nanostructures

Analytical Solution for Static and Dynamic Analysis of Graphene-Based Hybrid Flexoelectric Nanostructures

Antibacterial polymer nanofiber-coated and high elastin protein-expressing BMSCs incorporated polypropylene mesh for accelerating healing of female pelvic floor dysfunction

Band gap manipulation of viscoelastic functionally graded phononic crystal

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