Results 31 to 40 of about 161,376 (364)

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

A Comparison of Plasticity Regularization Approaches for Geodynamic Modeling

open access: yesGeochemistry, Geophysics, Geosystems, 2023
The emergence, geometry and activation of faults are intrinsically linked to frictional rheology. The latter is thus a central element in geodynamic simulations which aim at modeling the generation and evolution of fault zones and plate boundaries ...
Thibault Duretz   +3 more
doaj   +1 more source

A porous crystal plasticity constitutive model for ductile deformation and failure in porous single crystals [PDF]

open access: yes, 2018
The author thankfully acknowledges the financial support of EPSRC funding (EP/ L021714/1).Peer ...
Siddiq, Amir
core   +1 more source

A method to extract slip system dependent information for crystal plasticity models

open access: yesMethodsX, 2022
A tool to implement a length scale dependency to classical crystal plasticity simulations is presented. Classical crystal plasticity models do not include a size effect; therefore, the size of the grain does not influence the simulated deformation ...
Dylan Agius   +4 more
doaj   +1 more source

Fluctuation phenomena in crystal plasticity - a continuum model [PDF]

open access: yes, 2005
On microscopic and mesoscopic scales, plastic flow of crystals is characterized by large intrinsic fluctuations. Deformation by crystallographic slip occurs in a sequence of intermittent bursts ('slip avalanches') with power-law size distribution. In the
Michael Zaiser   +4 more
core   +2 more sources

Questioning size effects as predicted by strain gradient plasticity

open access: yesJournal of the Mechanical Behavior of Materials, 2013
The analytical solution of the elastic-plastic response of a two-phase laminate microstructure subjected to periodic simple shear loading conditions is derived considering strain gradient and micromorphic plasticity models successively. One phase remains
Forest Samuel
doaj   +1 more source

Strain gradient polycrystal plasticity for micro-forming [PDF]

open access: yesAIP Conference Proceedings, 2016
The developments in the micro-device industry has produced a substantial demand for the miniaturized metallic components with ultra-thin sheet materials that have thickness dimensions on the order of 50-500 µm which are produced through micro-forming processes.
Yalcinkaya, Tuncay   +2 more
openaire   +3 more sources

Limit, shakedown and ratchet analyses of defective pipeline under internal pressure and cyclic thermal loading [PDF]

open access: yes, 2011
In this study, the limit load, shakedown and ratchet limit of a defective pipeline subjected to constant internal pressure and a cyclic thermal gradient are analyzed.
Chen, Haofeng   +4 more
core   +1 more source

Dislocation plasticity in thin metal films [PDF]

open access: yes, 2002
This article describes the current level of understanding of dislocation plasticity in thin films and small structures in which the film or structure dimension plays an important role. Experimental observations of the deformation behavior of thin films,
Arzt, E.   +3 more
core   +1 more source

Strain Gradient Plasticity Applied to Material Cutting [PDF]

open access: yesAdvanced Materials Research, 2011
To better understand the complex phenomena involved in the cutting process is to better qualify the behaviour law used in the simulatiotrn of machining processes (analytical and finite element modeling). The aim of this paper is to present the choices made regarding the behaviour law in this context, indeed, commonly used behaviour laws such as Jonhson-
Royer, Raphaël   +2 more
openaire   +2 more sources

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