Results 11 to 20 of about 435,912 (264)

Motion Driven by Strain Gradient Fields. [PDF]

open access: yesSci Rep, 2015
AbstractA new driving mechanism for direction-controlled motion of nano-scale objects is proposed, based on a model of stretching a graphene strip linked to a rigid base with linear springs of identical stiffness. We find that the potential energy difference induced by the strain gradient field in the graphene strip substrate can generate sufficient ...
Wang C, Chen S.
europepmc   +4 more sources

On the strain gradient bending deformations [PDF]

open access: yesJournal of the Mechanical Behavior of Materials, 2013
Bending deformations are reviewed in the context of strain gradient linear elasticity, considering the complete set of strain gradient components. It is well understood that conventional bending deformations depend on the collective uniaxial extension of
Lazopoulos Konstantinos A.   +1 more
doaj   +2 more sources

A reformulation of strain gradient plasticity [PDF]

open access: yesJournal of the Mechanics and Physics of Solids, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fleck, N. A., Hutchinson, J. W.
openaire   +2 more sources

Strain gradients in epitaxial ferroelectrics [PDF]

open access: yesPhysical Review B, 2005
4 pages, 3 embedded figures (1 color ...
Catalan, G.   +4 more
openaire   +3 more sources

Extraordinary strain hardening by gradient structure [PDF]

open access: yesProceedings of the National Academy of Sciences, 2014
Significance Nature creates the gradient structure (GS) for a purpose: to make biological systems strong and tough to survive severe natural forces. For the grain-size GS, the deformation physics is still unclear. One wonders if the grain-size GS in the nanomicroscale would also benefit materials engineered by mankind.
XiaoLei, Wu   +4 more
openaire   +2 more sources

Constitutive Model of Thin Metal Sheet in Bulging Test Considering Strain Gradient Hardening

open access: yesMedžiagotyra, 2020
The study of the size effect was one of the most important subjects in the field of micro-forming. To investigate the stress of the thin sheet in the bulging test with the second order size effect, a constitutive equation considering the strain gradient ...
Wei LIANG, Tieping WEI, Xiaoxiang YANG
doaj   +1 more source

Cellular Orientation Is Guided by Strain Gradients [PDF]

open access: yesIntegrative Biology, 2016
The strain-induced reorientation response of cyclically stretched cells has been well characterized in uniform strain fields. In the present study, we comprehensively analyse the behaviour of human fibroblasts subjected to a highly non-uniform strain field within a polymethylsiloxane microdevice.
Sophie Chagnon-Lessard   +3 more
openaire   +2 more sources

Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates [PDF]

open access: yesJournal of Advanced Dielectrics, 2020
It has been established that in plates made of hot-pressed ferroelectric ceramics PZT-19 (Tc=300∘C), after metal electrodes from Ag are burned into opposite surfaces with different depths of mechanical damage, counter-directional stationary deformation ...
Yu. N. Zakharov   +9 more
doaj   +1 more source

Measurement of Gradient Strain Fields with Fiber-Optic Sensors

open access: yesSensors, 2022
The results of measuring gradient strain fields by embedded or mounted point fiber-optic sensors based on Bragg gratings and distributed fiber-optic sensors based on Rayleigh scattering are discussed.
Valerii Matveenko   +3 more
doaj   +1 more source

Switching a Polar Metal via Strain Gradients [PDF]

open access: yesPhysical Review Letters, 2021
Although rare, spontaneous breakdown of inversion symmetry sometimes occurs in a material which is metallic: these are commonly known as polar metals or ferroelectric metals. Their 'polarization', however, cannot be switched via an electric field, which limits the experimental control over band topology.
Zabalo, Asier, Stengel, Massimiliano
openaire   +4 more sources

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