Results 31 to 40 of about 270,844 (279)

On rate-dependent dissipation effects in electro-elasticity [PDF]

open access: yes, 2014
This paper deals with the mathematical modelling of large strain electro-viscoelastic deformations in electro-active polymers. Energy dissipation is assumed to occur due to mechanical viscoelasticity of the polymer as well as due to time-dependent ...
Saxena, Prashant   +2 more
core   +2 more sources

Stress analysis of rotational shaft with a constant angular speed using strain gradient theory [PDF]

open access: yesInternational Journal of Advanced Design and Manufacturing Technology, 2012
In classical mechanics, considering Hook’s law stress is a linear function of strain. While in strain gradient theory stress is a function of strain and strain differentials.
mostafa homayouni
doaj  

A gradient theory based on the Aifantis theory using the Gurtin-Anand strain gradient plasticity approach

open access: yesJournal of the Mechanical Behavior of Materials, 2018
This article investigates the differences between the Aifantis and Gurtin-Anand strain gradient plasticity. The fact that Gurtin-Anand strain gradient plasticity is richer than the Aifantis strain gradient plasticity provides a basis for which we could ...
Borokinni Adebowale S.
doaj   +1 more source

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

open access: yesJournal 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

Size-Dependent Buckling Analysis of Microbeams by an Analytical Solution and Isogeometric Analysis

open access: yesCrystals, 2022
This paper proposes an analytical solution and isogeometric analysis numerical approach for buckling analysis of size-dependent beams based on a reformulated strain gradient elasticity theory (RSGET).
Shuohui Yin   +4 more
doaj   +1 more source

Strain Gradient Plasticity: Theory and Implementation

open access: yes, 2020
This chapter focuses on the foundation and development of various higher-order strain gradient plasticity theories, and it also provides the basic elements for their finite element implementation. To this aim, we first refer to experiments exhibiting size-effects in metals and explain them by resorting to the concept of geometrically necessary ...
Lorenzo Bardella, Christian F. Niordson
openaire   +2 more sources

Strain Transfer Mechanism in Surface-Bonded Distributed Fiber Optic Sensors under Different Strain Fields

open access: yesSensors, 2023
Mastering the strain transfer mechanism in distributed fiber optic (DFO) sensors holds the key to analyzing strain measurement errors from DFO sensing systems.
Wenbo Du   +7 more
doaj   +1 more source

A theory of strain-gradient plasticity with effect of internal microforce [PDF]

open access: yesTheoretical and Applied Mechanics, 2017
This paper develops a theory of strain gradient plasticity for isotropic bodies undergoing small deformation in the absence of plastic spin. The proposed theory is based on a system of microstresses which include a microstress vector consistent with ...
Borokinni Adebowale   +2 more
doaj   +1 more source

Non-Conventional Thermodynamics and Models of Gradient Elasticity

open access: yesEntropy, 2018
We consider material bodies exhibiting a response function for free energy, which depends on both the strain and its gradient. Toupin–Mindlin’s gradient elasticity is characterized by Cauchy stress tensors, which are given by space-like Euler–Lagrange ...
Hans-Dieter Alber   +3 more
doaj   +1 more source

Strain gradient and electric field gradient effects in piezoelectric cantilever beams

open access: yesJournal of the Mechanical Behavior of Materials, 2015
A piezoelectric beam model with strain gradient and electric gradient effects is proposed. An energy variational principle with strain, strain gradient, electric field, and electric field gradient considered as independent variables is postulated to ...
Yue Yanmei, Xu Kaiyu, Aifantis Elias C.
doaj   +1 more source

Home - About - Disclaimer - Privacy