Nonlocal couple stress-based meshless collocation model for nonlinear dynamic performance of microbeam-type piezoelectric energy harvesters

European Journal of Mechanics - A/Solids, Journal Year: 2023, Volume and Issue: 101, P. 105059 - 105059

Published: June 18, 2023

Language: Английский

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State-of-the-Art Review of Computational Static and Dynamic Behaviors of Small-Scaled Functionally Graded Multilayer Shallow Arch Structures from Design to Analysis

Archives of Computational Methods in Engineering, Journal Year: 2023, Volume and Issue: 31(1), P. 389 - 453

Published: Aug. 14, 2023

Language: Английский

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A novel isogeometric model for dynamic buckling analysis of doubly curved two-directional functionally graded porous shallow microshells in thermal environments via variable length-scale parameters

Mechanics Based Design of Structures and Machines, Journal Year: 2024, Volume and Issue: 52(11), P. 8610 - 8638

Published: March 9, 2024

In this study, the thermo-mechanical dynamic buckling analysis of two-directional functionally graded porous (2D-FGP) shallow microshells resting on elastic foundations with arbitrary boundary conditions is performed using isogeometric approach. The approach takes advantage non-uniform rational B-spline basic functions to exactly represent structure geometry models and attainment higher order approximation conditions. characteristics material vary in both thickness axial x orientation. Especially, a new point length-scale parameter microshell analyzed as function spatial coordinates gradient parameters. Using Hamilton's principle, modified couple stress theory, Kirchhoff-Love's shell governing equations 2D-FGP lying Pasternak medium are obtained. A computer program that employs an method analyze static doubly curved various numerical results for thin cylindrical, spherical, hyperbolic paraboloidal planforms, such rectangular circular, presented. Several special cases used demonstrate accuracy efficacy developed model by comparing obtained proposed formulations other published data. addition, effects certain parameters, length scale power-law indexes, thickness-to-sides ratio, radius response double curvature explored depth.

Language: Английский

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Curvature sensitive model of isogeometric collocation for multiple nonlinear equilibria of reinforced porous curved microbeams

Ain Shams Engineering Journal, Journal Year: 2024, Volume and Issue: unknown, P. 103042 - 103042

Published: Sept. 1, 2024

Language: Английский

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On the vibrational analysis of small-scale flexoelectric multi-layer plates based on the modified porous EP-FG formulations

Acta Mechanica, Journal Year: 2024, Volume and Issue: 235(9), P. 5843 - 5861

Published: July 16, 2024

Language: Английский

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Investigation on The Vibration Responses of a Multi-Span Continuous Bridge Caused by The High-Speed Train

Journal of Vibration Engineering & Technologies, Journal Year: 2025, Volume and Issue: 13(1)

Published: Jan. 1, 2025

Language: Английский

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On the role of surface stress tensor in the nonlinear response of time-dependent mechanical actuated nanoplate-type energy piezo-harvesters

Mechanics of Advanced Materials and Structures, Journal Year: 2023, Volume and Issue: 31(26), P. 8113 - 8135

Published: Sept. 12, 2023

AbstractIn the present exploration, role of surface stress tensor as one most important size effects at nanoscale in nonlinear dynamical behavior nanoplate-type energy piezo-harvesters under a time-dependent mechanical actuation is investigated. The general form functional associated with quasi-3D nanosize piezo-harvester incorporating Lame constants and residual derived. After that, by taking Hamilton's principle into consideration, weak continuum mechanics-based governing equations for achieved. Afterwards, meshless collocation strategy utilized to numerically solve established coupled electromechanical elastic-based problem aid implementing combined polynomial-kind radial-kind basis functions eliminate any singularity which may be observed moment matrices. One can find that simply edge supports owning thickness 10, 20, 50 nm, average value achieved voltages are equal 84.7140, 169.4280, 423.5701 μv, respectively. However, these values order reduce 48.7650 μv (−42.44%), 126.8687 (−25.12%), 386.3565 (−8.79%). Moreover, clamped conventional attained are, respectively, 71.9994, 143.9989, 359.9973 μv. decrease 27.1823 (−62.25%), 83.0573 (−42.32%), 328.9342 (−8.63%), Therefore, it deduced owing lower more prominent.Keywords: Piezoelectricitysurface tensorenergy harvestingnanocompositescontinuum mechanics Disclosure statementNo potential conflict interest was reported author(s).Additional informationFundingThe authors extend their appreciation Deanship Research Innovation, Ministry Education Saudi Arabia, funding this research work through project number "IFPRC-047-135-2020" King Abdulaziz University, DSR, Jeddah, Arabia.

Language: Английский

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A review on computational linear and nonlinear dynamic analysis of shell-type composite structures

Computers & Structures, Journal Year: 2024, Volume and Issue: 306, P. 107596 - 107596

Published: Nov. 28, 2024

Language: Английский

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Size-dependent buckling and instability of a porous microplate under electrostatic fields and Casimir forces

Archive of Applied Mechanics, Journal Year: 2024, Volume and Issue: 94(4), P. 1055 - 1077

Published: March 6, 2024

Language: Английский

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A new semi-analytical approach for nonlinear dynamic responses of functionally graded porous graphene platelet-reinforced circular plates and spherical shells

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 21, 2024

This paper presents the semi-analytical approach for nonlinear dynamic responses of porous graphene platelet-reinforced circular plates (CiPs) and spherical shells (SpSs) resting on Pasternak foundation in thermal environment. The platelets (GPLs) are distributed functionally graded (FG) distribution patterns uniform pattern through CiP SpS thickness direction. governing equations GPL-reinforced structures subjected to time-dependent external pressure respected harmonic linear functions time established based geometrically higher-order shear deformation theory. A simple effective solution considered problem is using Euler-Lagrange equations, damping viscosity can be counted Rayleigh dispassion function. Runge-Kutta method employed determine structures, while fundamental frequencies free vibration, frequency-amplitude curves obtained explicit form. numerical results reveal that GPL distributions, geometrical material properties significantly affect curves, harmonically loaded linearly specially, buckling phenomenon clearly observable with SpSs but not CiPs.

Language: Английский

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