Results 41 to 50 of about 12,586 (258)

Blow-up and global existence for a general class of nonlocal nonlinear coupled wave equations [PDF]

open access: yes, 2010
We study the initial-value problem for a general class of nonlinear nonlocal coupled wave equations. The problem involves convolution operators with kernel functions whose Fourier transforms are nonnegative.
A. Erkip   +20 more
core   +3 more sources

Concentrated Couple in a Plane and in a Half-Plane in the Framework of Fractional Nonlocal Elasticity

open access: yesApplied Sciences
In nonlocal elasticity, the constitutive equation for the stress tensor is written in an integral form, with the weight function, referred to as the nonlocality kernel, often being the Green’s function for the partial differential equation. In this paper,
Yuriy Povstenko   +4 more
doaj   +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

Extension the Noether's theorem to Lagrangian formulation with nonlocality

open access: yes, 2012
A Lagrangian formulation with nonlocality is investigated in this paper. The nonlocality of the Lagrangian is introduced by a new nonlocal argument that is defined as a nonlocal residual satisfying the zero mean condition.
Atkinson C.   +3 more
core   +1 more source

On formulation of nonlocal elasticity problems

open access: yesMeccanica, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Giovanni Romano, Marina Diaco
openaire   +3 more sources

Determination of the Appropriate Gradient Elasticity Theory for Bending Analysis of Nano-beams by Considering Boundary Conditions Effect

open access: yesLatin American Journal of Solids and Structures
In the present paper, a critique study on some models available in the literature for bending analysis of nano-beams using the gradient elasticity theory is accomplished.
Mahmood Mehrdad Shokrieh, Iman Zibaei
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

Free Vibrations Analysis of Functionally Graded Rectangular Nano-plates based on Nonlocal Exponential Shear Deformation Theory [PDF]

open access: yesMechanics of Advanced Composite Structures, 2015
In the present study the free vibration analysis of the functionally graded rectangular nanoplates is investigated. The nonlocal elasticity theory based on the exponential shear deformation theory has been used to obtain the natural frequencies of the ...
Korosh Khorshidi   +2 more
doaj   +1 more source

Spatial dispersion of elastic waves in a bar characterized by tempered nonlocal elasticity

open access: yes, 2016
We apply the framework of tempered fractional calculus to investigate the spatial dispersion of elastic waves in a one-dimensional elastic bar characterized by range-dependent nonlocal interactions.
Holm, Sverre   +2 more
core   +1 more source

Nonlocal elastic metasurfaces: Enabling broadband wave control via intentional nonlocality [PDF]

open access: yesProceedings of the National Academy of Sciences, 2020
Significance The practical application of passive elastic metasurfaces is severely hindered by its intrinsic narrow-band performance due to the underlying locally resonant nature. In this study, we present the concept of “intentional nonlocality” as the fundamental mechanism to design broadband elastic metasurfaces for the control of stress ...
Hongfei Zhu   +4 more
openaire   +3 more sources

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