Dynamic and pull-in instability analyses of functionally graded nanoplates via nonlocal strain gradient theory

J Torabi, R Ansari, A Zabihi… - Mechanics Based Design …, 2022 - Taylor & Francis
The main subject of this study is the dynamic and static pull-in analyses of rectangular
nanoplates made of functionally graded materials based on the nonlocal strain gradient …

Nonlinear electromechanical analysis of micro/nanobeams based on the nonlocal strain gradient theory tuned by flexoelectric and piezoelectric effects

H Yademellat, R Ansari, A Darvizeh… - … Based Design of …, 2023 - Taylor & Francis
This study investigates the size-dependent dynamic pull-in instability of piezoelectrically and
electrostatically actuated micro/nanobeams considering the Euler–Bernoulli theory and von …

Nonlocal strain gradient pull-in study of nanobeams considering various boundary conditions

SMJ Hosseini, R Ansari, J Torabi, K Hosseini… - Iranian Journal of …, 2021 - Springer
The main objective of this investigation is to study the size-dependent dynamic pull-in
instability of nanobeams based on the nonlocal strain gradient theory (NLSGT) and Euler …

Effects of geometric nonlinearity on the pull-in instability of circular microplates based on modified strain gradient theory

A Zabihi, J Torabi, R Ansari - Physica Scripta, 2020 - iopscience.iop.org
Presented in this study is an analytical investigation on the size-dependent nonlinear
vibration and pull-in instability of circular microplates subjected to the electrostatic, Casimir …

Nonlinear flexure mechanics of beams: stress gradient and nonlocal integral theory

M Fazlali, SH Moghtaderi… - Materials Research …, 2021 - iopscience.iop.org
In order to study the intrinsic size-effects, the stress gradient theory is implemented to a nano-
scale beam model in nonlinear flexure. The nonlocal integral elasticity model is considered …

Stability analysis of quasicrystal torsion micromirror actuator based on the strain gradient theory

Y Huang, M Feng, X Chen - Acta Mechanica Sinica, 2022 - Springer
Electrostatic torsional micromirrors are widely applied in the fields of micro-optical switches,
optical attenuators, optical scanners, and optical displays. In previous lectures, most of the …

Variational formulations and isogeometric analysis of Timoshenko–Ehrenfest microbeam using a reformulated strain gradient elasticity theory

S Yin, Z Xiao, J Liu, Z Xia, S Gu - Crystals, 2022 - mdpi.com
This paper presents a novel non-classical Timoshenko–Ehrenfest beam model based on a
reformulated strain gradient elasticity theory. The strain gradient effect, couple stress effect …

Steady natural convection Couette flow with wall conduction and thermal boundary condition of third kind

AO Ajibade, AM Umar - ZAMM‐Journal of Applied Mathematics …, 2020 - Wiley Online Library
This study theoretically investigates the effects of viscous dissipation and boundary plate
thickness on an incompressible heat generating/absorbing fluid with non‐uniform internal …

Unified higher-order theory of two-phase nonlocal gradient elasticity

SA Faghidian, E Ghavanloo - Meccanica, 2021 - Springer
The unified higher-order theory of two-phase nonlocal gradient elasticity is conceived via
consistently introducing the higher-order two-phase nonlocality to the higher-order gradient …

Nonlinear pull-in instability of rectangular nanoplates based on the positive and negative second-order strain gradient theories with various edge supports

A Zabihi, R Ansari, K Hosseini, F Samadani… - … für Naturforschung A, 2020 - degruyter.com
Based on the positive and negative second-order strain gradient theories along with
Kirchhoff thin plate theory and von Kármán hypothesis, the pull-in instability of rectangular …