Results 21 to 30 of about 2,257,308 (283)

Scalar-based strain gradient plasticity theory to model size-dependent kinematic hardening effects [PDF]

open access: yes, 2021
A common belief in phenomenological strain gradient plasticity modeling is that including the gradient of scalar variables in the constitutive setting leads to size-dependent isotropic hardening, whereas the gradient of second-order tensors induces size ...
JEBAHI, Mohamed   +3 more
core   +1 more source

Weak Solutions within the Gradient-Incomplete Strain-Gradient Elasticity [PDF]

open access: yesLobachevskii Journal of Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Eremeyev V. A., dell'Isola F.
openaire   +1 more source

An alternative way to describe thermodynamically-consistent higher-order dissipation within strain gradient plasticity [PDF]

open access: yes, 2022
In the context of strain gradient plasticity (SGP), description of higher-order dissipation is the subject of extensive on-going discussions. In most existing SGP theories including thermodynamically-consistent higher-order dissipation, higher-order ...
JEBAHI, Mohamed, FOREST, Samuel
core   +1 more source

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

Meshless Computational Strategy for Higher Order Strain Gradient Plate Models

open access: yesMathematical and Computational Applications, 2022
The present research focuses on the use of a meshless method for the solution of nanoplates by considering strain gradient thin plate theory. Unlike the most common finite element method, meshless methods do not rely on a domain decomposition.
Francesco Fabbrocino   +4 more
doaj   +1 more source

Irreducible decomposition of strain gradient tensor in isotropic strain gradient elasticity [PDF]

open access: yesZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, 2016
In isotropic strain gradient elasticity, we decompose the strain gradient tensor into its irreducible pieces under the n‐dimensional orthogonal group . Using the Young tableau method for traceless tensors, four irreducible pieces (), which are canonical, are obtained.
openaire   +2 more sources

Geomechanical Model Test and Energy Mechanism Analysis of Zonal Disintegration in Deep Surrounding Rock

open access: yesGeosciences, 2018
With the decreasing of shallow resources, underground roadways of resources exploitation have reached into deep rock mass with high geostress. A series of new failure phenomena such as zonal disintegration phenomenon were discovered in deep surrounding ...
Qiang Gao   +3 more
doaj   +1 more source

A New Method of Fatigue Life Prediction for Notched Specimen

open access: yesJournal of Aeronautical Materials, 2017
The simulations of the notched specimens under multiaxial loading were conducted by finite element method. The simulation results show that the stress gradient increases with the decrease in notch radius for the same strain path.
JIN Dan, GOU Zhifei
doaj   +1 more source

Annealing Behavior of Surface-Locally Cold-Deformed Low-Carbon Steel with a Large Strain Gradient

open access: yesMetals, 2018
The annealing behavior of surface-locally cold-deformed 0.2 mass% carbon steel with a large strain gradient was investigated, with special attention paid to the change in grain size.
Xianguang Zhang   +2 more
doaj   +1 more source

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