Results 21 to 30 of about 71,780 (248)

Dynamic Analysis of a Timoshenko–Ehrenfest Single-Walled Carbon Nanotube in the Presence of Surface Effects: The Truncated Theory

open access: yesApplied Mechanics, 2023
The main objective of this paper is to study the free vibration of a Timoshenko–Ehrenfest single-walled carbon nanotube based on the nonlocal theory and taking surface effects into account.
Maria Anna De Rosa   +3 more
doaj   +1 more source

Analysis of a micro piezoelectric vibration energy harvester by nonlocal elasticity theory

open access: yesAdvances in Mechanical Engineering, 2016
A theoretical model of a micro piezoelectric energy harvester is proposed based on the nonlocal elasticity theory, which is operated in the flexural mode for scavenging ambient vibration energy.
Hao Chen   +3 more
doaj   +1 more source

On the application of the partition of unity method for nonlocal response of low-dimensional structures

open access: yesJournal of the Mechanical Behavior of Materials, 2014
The main objectives of the paper are to (1) present an overview of nonlocal integral elasticity and Aifantis gradient elasticity theory and (2) discuss the application of partition of unity methods to study the response of low-dimensional structures.
Natarajan Sundararajan
doaj   +1 more source

Thermodynamically consistent gradient elasticity with an internal variable

open access: yes, 2020
The role of thermodynamics in continuum mechanics and the derivation of the proper constitutive relations is a discussed subject of Rational Mechanics. The classical literature did not use the accumulated knowledge of thermostatics and was very critical ...
Ván, Peter
core   +1 more source

Wave propagation characteristics in nanoporous metal foam nanobeams

open access: yesResults in Physics, 2019
This research is devoted to the wave propagation characteristics analysis of nanobeams made of nanoporous metal foams. Three nanoporosity distribution models, namely, symmetry, asymmetry and uniform distributions, are taken into account.
Yan Qing Wang, Chen Liang
doaj   +1 more source

Exact analytical approach for free longitudinal vibration of nanorods based on nonlocal elasticity theory from wave standpoint [PDF]

open access: yesJournal of Theoretical and Applied Vibration and Acoustics, 2017
In this paper, free longitudinal vibration of nanorods is investigated from the wave viewpoint. The Eringen’s nonlocal elasticity theory is used for nanorods modelling.
Mohammad Reza Hairi Yazdi   +2 more
doaj   +1 more source

Screw dislocations in the field theory of elastoplasticity [PDF]

open access: yes, 2002
A (microscopic) static elastoplastic field theory of dislocations with moment and force stresses is considered. The relationship between the moment stress and the Nye tensor is used for the dislocation Lagrangian.
Lazar, Markus
core   +6 more sources

Wave reflection in semiconductor nanostructures

open access: yesTheoretical and Applied Mechanics Letters, 2018
: Based on nonlocal thermoelastic theory, this article studies the reflection of waves in nanometer semi-conductor media. Firstly, the governing equations are established based on coupled nonlocal elasticity theory, plasma diffusion equation, and moving ...
Feixiang Tang, Yaqin Song
doaj   +1 more source

Fractional Hereditariness of Lipid Membranes: Instabilities and Linearized Evolution [PDF]

open access: yes, 2015
In this work lipid ordering phase changes arising in planar membrane bilayers is investigated both accounting for elas- ticity alone and for effective viscoelastic response of such assemblies.
Dayal, K.   +3 more
core   +2 more sources

Thermal Buckling Analysis of Circular Bilayer Graphene Sheets Resting on an Elastic Matrix Based on Nonlocal Continuum Mechanics [PDF]

open access: yesJournal of Applied and Computational Mechanics, 2021
In this article, the thermal buckling behavior of orthotropic circular bilayer graphene sheets embedded in the Winkler–Pasternak elastic medium is scrutinized.
M. Ahmad Pour   +2 more
doaj   +1 more source

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