Results 41 to 50 of about 270,844 (279)

Nonsingular stress and strain fields of dislocations and disclinations in first strain gradient elasticity

, 2005
The aim of this paper is to study the elastic stress and strain fields of dislocations and disclinations in the framework of Mindlin's gradient elasticity.
Lazar, Markus, Maugin, Gerard A.
core   +1 more source

Anisotropic and dispersive wave propagation within strain-gradient framework [PDF]

, 2016
In this paper anisotropic and dispersive wave propagation within linear strain-gradient elasticity is investigated. This analysis reveals significant features of this extended theory of continuum elasticity. First, and contrarily to classical elasticity,
Auffray, Nicolas, Rosi, Giuseppe
core   +2 more sources

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

Latin 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

Forced Nonlinear Vibrations in a Smart Magneto-Viscoelastic Multiscale Composite Nanobeam in a Humid Thermal Environment

Engineering Transactions, 2023
In this paper, we study forced harmonic waves in a magneto-electro-viscoelastic (MEV) nanobeam embedded in a viscoelastic foundation using nonlocal strain gradient elasticity theory.
Lakshmanan ANITHA, Loganathan RAJALAKSHMI, Rajendran SELVAMANI, Farzad EBRAHIMI   +3 more
doaj   +1 more source

Contact of Rough Surfaces: An Incremental Model Accounting for Strain Gradient Plasticity

Lubricants, 2023
In the contact of rough surfaces, most contact patches are at the scale of micrometers, and thus, their contact deformation can be dominated by the size-dependent plasticity. In this paper, we propose a new strategy to analyze the role of strain gradient
Chunyun Jiang, Weike Yuan, Yanbin Zheng, Gangfeng Wang   +3 more
doaj   +1 more source

Hyperelastic cloaking theory: Transformation elasticity with pre-stressed solids

, 2012
Transformation elasticity, by analogy with transformation acoustics and optics, converts material domains without altering wave properties, thereby enabling cloaking and related effects.
Cosserat E., Dill E. H., Eringen A. C., Ogden R. W., Ogden R. W., Vasquez F. G.   +5 more
core   +2 more sources

Size effects and idealized dislocation microstructure at small scales: predictions of a phenomenological model of Mesoscopic Field Dislocation Mechanics: Part I

, 2005
A Phenomenological Mesoscopic Field Dislocation Mechanics (PMFDM) model is developed, extending continuum plasticity theory for studying initial-boundary value problems of small-scale plasticity.
Acharya, Amit, Roy, Anish
core   +1 more source

Mode I crack tip fields: strain gradient plasticity theory versus J2 flow theory

, 2019
The mode I crack tip asymptotic response of a solid characterised by strain gradient plasticity is investigated. It is found that elastic strains dominate plastic strains near the crack tip, and thus the Cauchy stress and the strain state are given ...
Fleck, Norman A., Martínez-Pañeda, Emilio   +1 more
core   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source

Simulation of instabilities in non-softening Drucker-Prager plasticity

Computer Assisted Methods in Engineering and Science, 2023
The problem of instability and strain localization in a hardening non-associative Drucker-Prager plasticity theory is analyzed. The classical and gradient-enhanced versions of the theory are reviewed and instability indicators are summarized.
Anna Stankiewicz, Jerzy Pamin
doaj