Nonlinear postbuckling analysis of magneto-electro-thermo-elastic laminated microbeams based on modified couple stress theory

Applied Mathematical Modelling, Journal Year: 2023, Volume and Issue: 118, P. 89 - 106

Published: Jan. 21, 2023

Language: Английский

---

Prediction of elastic properties of thermoplastic composites with natural fibers

Journal of the Textile Institute, Journal Year: 2022, Volume and Issue: 114(10), P. 1488 - 1496

Published: Oct. 10, 2022

Language: Английский

---

Magnetic Control of Vibrational Behavior of Smart FG Sandwich Plates with Honeycomb Core via a Quasi‐3D Plate Theory

Advanced Engineering Materials, Journal Year: 2023, Volume and Issue: 25(13)

Published: March 17, 2023

Herein, vibrational behavior of functionally graded (FG) smart piezoelectric sandwich plates with honeycomb core resting on viscoelastic foundation under the effect 2D magnetic field is presented. By varying magnetic‐field magnitude and its direction, vibrations can be controlled. The plate composed two FG layers bonded structure as a mid‐layer. Magnetic Lorentz force will deduced via Maxwell's relations. A new quasi‐3D theory considering shear normal deformations incorporated to evaluate displacements. governing equations motion are introduced Hamilton's principle. Galerkin technique considered solve for different boundary conditions. Influences field, conditions, electric voltage, thickness eigenfrequency illustrated. It found that devices increases their vibrations, which may lead an increment in energy harvested from them. Further, when applied along length rectangular plate, reduced vice versa.

Language: Английский

---

Development and analysis of magnet-engaged piezoelectric energy generator under friction-induced vibration

International Journal of Non-Linear Mechanics, Journal Year: 2023, Volume and Issue: 158, P. 104560 - 104560

Published: Oct. 18, 2023

Language: Английский

---

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

---

Nonlocal and couple stress tensors in three-dimensional nonlinear dynamical stability behavior of microshells manufactured by smart materials

Acta Mechanica, Journal Year: 2022, Volume and Issue: 233(12), P. 5377 - 5401

Published: Oct. 26, 2022

Language: Английский

---

Nonlinear three-dimensional oscillations of probabilistic reinforced nanocomposite shells at microscale via modified strain gradient meshfree formulations

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, Journal Year: 2022, Volume and Issue: 237(13), P. 3020 - 3034

Published: Dec. 15, 2022

A numerical solution process based on the moving Kriging meshfree is developed in current exploration to predict microstructural-dependent three-dimensional nonlinear large-deflection oscillation response of probabilistic nanocomposite microsized shells considering deviatoric stretch, rotation, and dilatation gradient tensors. To do so, modified strain theory mechanics applied within elasticity framework. Probabilistic composite microshells are prepared from nanocomposites reinforced by graphene nanofillers dispersed different checkerboard schemes. Material properties determined using a combination Monte-Carlo simulation probabilistic-based micromechanical scheme. Thereafter, correct polynomial-based functions associated with considered nodding system satisfy essential boundary conditions correctly. It described that strengthening character corresponding rotation dilatation, tensors stronger for containing larger aspect ratios higher volume fractions. Also, peak observed certain frequency ratio at specific length radius microshell. Considering microstructural tensors, appears lower

Language: Английский

---

On the Advances of Computational Nonclassical Continuum Theories of Elasticity for Bending Analyses of Small-Sized Plate-Based Structures: A Review

Archives of Computational Methods in Engineering, Journal Year: 2023, Volume and Issue: 30(5), P. 2959 - 3029

Published: Feb. 15, 2023

Language: Английский

---

Buckling Analysis of Nanobeams Resting on Viscoelastic Foundation

Journal of Vibration Engineering & Technologies, Journal Year: 2024, Volume and Issue: 12(4), P. 6665 - 6683

Published: March 12, 2024

Language: Английский

---

Bending and linear dynamic response of nanoplates in thermal environment

Proceedings of the Institution of Mechanical Engineers Part C Journal of Mechanical Engineering Science, Journal Year: 2024, Volume and Issue: 238(21), P. 10460 - 10479

Published: July 25, 2024

The article combines the finite element method with novel-type sinusoidal hyperbolic shear strain hypothesis to study static bending response and dynamics of nanoplates subjected simultaneous mechanical, thermal, voltage loads. plate equilibrium equation is developed from concept potential work, which takes into account impact flexoelectricity effect. formula for electric field that operating on becomes more complicated when new theory used; nonetheless, its complexity adequately displays both mechanical electrical components, as well electromechanical are acting nanoplate. computational also verified through comparison previously published data. investigates influence some material factors, temperature, external displacement charge polarization in case subjecting time-varying results demonstrate thermomechanical-electrical dependent numerous serve foundation practical design application nanostructures.

Language: Английский

---