Vibrations of viscoelastic FG porous graphene-platelets reinforced doubly-curved shells via experimental characterisation of graphene platelets

Engineering Structures, Год журнала: 2024, Номер 315, С. 118360 - 118360

Опубликована: Июнь 20, 2024

Язык: Английский

---

On three-dimensional dynamics of smart rotating micro-disks

International Journal of Engineering Science, Год журнала: 2025, Номер 211, С. 104236 - 104236

Опубликована: Март 7, 2025

Язык: Английский

---

On nonlinear 3D electro-elastic numerical modeling of two-phase inhomogeneous FG piezocomposites reinforced with GNPs

International Journal of Engineering Science, Год журнала: 2024, Номер 207, С. 104174 - 104174

Опубликована: Ноя. 27, 2024

Язык: Английский

---

Thermal buckling response of foam core smart sandwich nanoplates with electro-elastic and magneto-strictive layers

Acta Mechanica, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

Язык: Английский

---

Wave propagation characteristics of quasi-3D graphene origami-enabled auxetic metamaterial plates

International Journal of Engineering Science, Год журнала: 2024, Номер unknown, С. 104185 - 104185

Опубликована: Дек. 1, 2024

Язык: Английский

---

Formulation of non-local space-fractional plate model and validation for composite micro-plates

International Journal of Engineering Science, Год журнала: 2023, Номер 192, С. 103932 - 103932

Опубликована: Авг. 3, 2023

It is challenging to design nano/micro-devices because of their small size and tight engineering tolerances. Computer-aided uses mathematical models device parts, but contemporary are not precise enough capture all characteristics the materials at nano/micro-scale. In this work, we propose a novel model for composite nano/micro-plates in bending framework space-fractional continuum mechanics approach. This yields closer mapping experimental results compared existing formulations. The developed theory named space-Fractional Kirchhoff–Love Plate (s-FKLP). We investigate how parameters s-FKLP model, responsible scale effect description, affect behavior micro-plates, considering different support conditions. addition, compare predicted by with previously simpler (one-dimensional) Euler–Bernoulli Beam (s-FEBB) show that choice structural analysis strategy can influence decisions. Despite its greater complexity, more versatile approach modeling micro-sized structures than s-FEBB. proposed empirically validated using real sandwich micro-plates. conclude alignment data indicating suitable representing also find model's length parameter corresponds microstructure's grain size. findings research may have implications future work optimization devices.

Язык: Английский

---

Nanocomposites with cylindrical/rectangular/spherical/ellipsoidal reinforcements: Generalized continuum mechanics

International Journal of Engineering Science, Год журнала: 2024, Номер 203, С. 104125 - 104125

Опубликована: Авг. 8, 2024

Язык: Английский

---

On the size‐dependent vibrations of doubly curved porous shear deformable FGM microshells

International journal of mechanical system dynamics, Год журнала: 2024, Номер unknown

Опубликована: Дек. 9, 2024

Abstract This paper aims to analyse the free vibrations of doubly curved imperfect shear deformable functionally graded material microshells using a five‐parameter model. Porosity is modeled via modified power‐law rule by logarithmic‐uneven variation along thickness. Coupled axial, transverse, and rotational motion equations for general microsystems are obtained virtual work/energy Hamilton's principle first‐order theory including small size dependence. The modal decomposition method then used obtain solution different geometries microshells: spherical, elliptical, hyperbolic, cylindrical. A detailed study on influence gradation porosity, small‐length scale coefficient, geometrical parameters frequency characteristics microsystem conducted shell geometries.

Язык: Английский

---

Generalized Rayleigh waves in a multi-layered structure of porous piezoelectric materials overlying a functionally graded porous piezoelectric base

Thin-Walled Structures, Год журнала: 2023, Номер 196, С. 111448 - 111448

Опубликована: Дек. 10, 2023

Язык: Английский

---

Vibration analysis of bio-inspired sandwich composite beam under rotating environment based on the Internet of Things technology

Mechanics Based Design of Structures and Machines, Год журнала: 2024, Номер 52(11), С. 8569 - 8609

Опубликована: Март 5, 2024

Sandwich composite materials with corrugated cores are mostly used in industries like aircraft, marine construction, automobiles, and construction. constructions made for their lightweight, high strength, stiffness, also the sandwich core structures useful dynamic studies. A novel design inspired by a woodpecker beak microstructure creates fillet edge champer designs. This motivates us to achieve energy absorbing results starting free vibration studies followed rotating environment ASTM E1876 standards, non-destructive approach, determine material properties of carbon fiber-polylactic acid (CF-PLA) glass fiber reinforced polymer (GFRP), along alternative method (ADM) property evaluation. The hand lay-up technique is fabrication evaluated testing appropriate boundary conditions. Internet Things technology has been analyzing vibrations setup 250, 500, 750, 1000 rpm. It was observed that pattern more efficient natural frequency than pattern. Furthermore, parametric evaluations were performed various ply configurations numerical simulations Environment. Also, effective seen bioinspired structure achieves stiffness both rotational environments, despite conditions circumstances. Therefore, 3D printed particular GFRP factsheet orientation brings out novelty this research.

Язык: Английский

---