Results 31 to 40 of about 1,716 (213)

Dynamic Analysis of a Piezoelectrically Layered Perforated Nonlocal Strain Gradient Nanobeam with Flexoelectricity

Mathematics, 2022
This study presents a mathematical size-dependent model capable of investigating the dynamic behavior of a sandwich perforated nanobeam incorporating the flexoelectricity effect.
Ammar Melaibari, Alaa A. Abdelrahman, Mostafa A. Hamed, Ahmed W. Abdalla, Mohamed A. Eltaher   +4 more
doaj   +1 more source

VIBRATION AND STABILITY OF A NONLINEAR NONLOCAL STRAIN-GRADIENT FG BEAM ON A VISCO-PASTERNAK FOUNDATION [PDF]

, 2023
This study investigates the stability of periodic solutions of a nonlinear nonlocal strain gradient functionally graded Euler–Bernoulli beam model resting on a visco-Pasternak foundation and subjected to external harmonic excitation.
Karličić, Danilo, Nešić, Nikola, Lazarević, Mihailo, Adhikari, Sondipon, Cajić, Milan   +4 more
core   +2 more sources

Dynamic response of the nonlocal strain-stress gradient in laminated polymer composites microtubes [PDF]

Scientific Reports, 2020
AbstractThis study presents the frequency analysis of a size-dependent laminated polymer composite microtube using a nonlocal strain-stress gradient (NSG) model. By applying energy methods (known as Hamilton’s principle), the motion equations of the laminated micro tube composites are developed.
Oyarhossein, Mohammad Amin, Alizadeh, As’ad, Habibi, Mostafa, Makkiabadi, Mahmoud, Daman, Mohsen, Safarpour, Hamed, Jung, Dong Won   +6 more
openaire   +2 more sources

Effect of flow pulsations on chaos in nanotubes using nonlocal strain gradient theory [PDF]

Communications in Nonlinear Science and Numerical Simulation, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Mergen H. Ghayesh, Ali Farajpour, Hamed Farokhi   +2 more
openaire   +2 more sources

Bending of Functionally Graded Sandwich Nanoplates Resting on ‎Pasternak Foundation under Different Boundary Conditions [PDF]

Journal of Applied and Computational Mechanics, 2020
This article proposes a refined higher order nonlocal strain gradient theory for stresses and deflections of new model of functionally graded (FG) sandwich nanoplates resting on Pasternak elastic foundation.
Ahmed A. Daikh, Ashraf M. Zenkour
doaj   +1 more source

Study on the small-scale effect on wave propagation characteristics of fluid-filled carbon nanotubes based on nonlocal fluid theory

Advances in Mechanical Engineering, 2019
In this article, Timoshenko’s beam model is established to investigate the wave propagation behaviors for a fluid-conveying carbon nanotube when employing the nonlocal stress–strain gradient coupled theory and nonlocal fluid theory.
Yang Yang, Wuhuai Yan, Jinrui Wang
doaj   +1 more source

Axial and Torsional Free Vibrations of Elastic Nano-Beams by Stress-Driven Two-Phase Elasticity [PDF]

Journal of Applied and Computational Mechanics, 2019
Size-dependent longitudinal and torsional vibrations of nano-beams are examined by two-phase mixture integral elasticity. A new and efficient elastodynamic model is conceived by convexly combining the local phase with strain- and stress-driven purely ...
Andrea Apuzzo, Raffaele Barretta, Francesco Fabbrocino, S. Ali Faghidian, Raimondo Luciano, Francesco Marotti de Sciarra   +5 more
doaj   +1 more source

Static and dynamic stability responses of multilayer functionally graded carbon nanotubes reinforced composite nanoplates via quasi 3D nonlocal strain gradient theory

Defence Technology, 2022
This manuscript presents the comprehensive study of thickness stretching effects on the free vibration, static stability and bending of multilayer functionally graded (FG) carbon nanotubes reinforced composite (CNTRC) nanoplates.
Ahmed Amine Daikh, Mohamed Sid Ahmed Houari, Mohamed Ouejdi Belarbi, Salwa A. Mohamed, Mohamed A. Eltaher   +4 more
doaj   +1 more source

Nonlinear Analyses of Porous Functionally Graded Sandwich Piezoelectric Nano-Energy Harvesters under Compressive Axial Loading

Applied Sciences, 2021
In this study, a sandwich piezoelectric nano-energy harvester model under compressive axial loading with a core layer fabricated of functionally graded (FG) porous material is presented based on the nonlocal strain gradient theory (NSGT).
Shan Zeng, Zhangtao Peng, Kaifa Wang, Baolin Wang, Jinwu Wu, Tianxi Luo   +5 more
doaj   +1 more source

Nonlocal strain gradient theory for bending, buckling, and vibration of viscoelastic functionally graded curved nanobeam embedded in an elastic medium

Advances in Mechanical Engineering, 2019
This article investigates bending, buckling, and vibration analysis in viscoelastic functionally graded curved nanobeam embedded in an elastic medium under different boundary conditions.
Mohamed NM Allam, Ahmed F Radwan
doaj   +1 more source