Results 21 to 30 of about 123,713 (291)

Dislocation subgrain structures and modeling the plastic hardening of metallic single crystals [PDF]

open access: yes, 2010
A single crystal plasticity theory for insertion into finite element simulation is formulated using sequential laminates to model subgrain dislocation structures.
Bronkhorst, C. A.   +2 more
core   +1 more source

Multiscale crystal plasticity finite element model for investigating the irradiation hardening and defect evolution mechanism of A508-3 steel

open access: yesNuclear Materials and Energy, 2022
A multiscale crystal plasticity finite element model, which combines molecular dynamics with crystal plasticity theory, is proposed. In this model, the evolution equations for partial- and full-absorption dislocation loops are utilized.
Pandong Lin, Junfeng Nie, Meidan Liu
doaj   +1 more source

Statistical approach to dislocation dynamics: From dislocation correlations to a multiple-slip continuum plasticity theory [PDF]

open access: yes, 2007
Due to recent successes of a statistical-based nonlocal continuum crystal plasticity theory for single-glide in explaining various aspects such as dislocation patterning and size-dependent plasticity, several attempts have been made to extend the theory ...
Erik Van der Giessen   +12 more
core   +4 more sources

Investigation into the Effects of Prior Plasticity on Creep Accumulation in 316H Stainless Steel

open access: yesPhysical Sciences Forum, 2022
Steel components in the boilers of nuclear reactors are subject to high temperatures and varying loading conditions. This can introduce time-dependent and time-independent plasticity, which can interact with one another.
Christopher Allen   +2 more
doaj   +1 more source

Effect of crystal orientation on indentation-induced residual stress field: Simulation and experimental validation

open access: yesMaterials & Design, 2019
Experimental determination of local residual stress fields beneath a spherical indent on a ⟨001⟩ copper single crystal revealed the presence of a significant tensile residual stress zone.
S. Breumier   +4 more
doaj   +1 more source

Effects of pore diameter and B2–NiTi crystal on plasticity of amorphous Ni–Ti alloy based on molecular dynamics simulation

open access: yesJournal of Materials Research and Technology, 2023
The poor plasticity of metallic glasses (MGs) limits its applicability as engineering materials. Therefore, it is particularly important to find ways to improve the plasticity of metallic glasses.
Yu Zhou   +5 more
doaj   +1 more source

Shock compression and spallation of single crystal tantalum [PDF]

open access: yes, 2012
We present molecular dynamics simulations of shock-induced plasticity and spall damage in single crystal Ta described by a recently developed embedded-atom-method (EAM) potential and a volumedependent qEAM potential.
An, Q.   +6 more
core   +1 more source

Study of size effects in thin films by means of a crystal plasticity theory based on DiFT [PDF]

open access: yes, 2007
In a recent publication, we derived the mesoscale continuum theory of plasticity for multiple-slip systems of parallel edge dislocations, motivated by the statistical-based nonlocal continuum crystal plasticity theory for single-glide due to Yefimov et ...
Limkumnerd, Surachate   +1 more
core   +3 more sources

A three-dimensional multiscale model of intergranular hydrogen-assisted cracking [PDF]

open access: yes, 2010
We present a three-dimensional model of intergranular hydrogen-embrittlement (HE) that accounts for: (i) the degradation of grain-boundary strength that arises from hydrogen coverage; (ii) grain-boundary diffusion of hydrogen; and (iii) a continuum model
Ortiz, M., Rimoli, J. J.
core   +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

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