Frontiers in the simulation of dislocations
Dislocations play a vital role in the mechanical behavior of crystalline materials during
deformation. To capture dislocation phenomena across all relevant scales, a multiscale …
deformation. To capture dislocation phenomena across all relevant scales, a multiscale …
Deformation of single crystals, polycrystalline materials, and thin films: A Review
G Yang, SJ Park - Materials, 2019 - mdpi.com
With the rapid development of nano-preparation processes, nanocrystalline materials have
been widely developed in the fields of mechanics, electricity, optics, and thermal physics …
been widely developed in the fields of mechanics, electricity, optics, and thermal physics …
[HTML][HTML] Strain rate dependency of dislocation plasticity
Dislocation glide is a general deformation mode, governing the strength of metals. Via
discrete dislocation dynamics and molecular dynamics simulations, we investigate the strain …
discrete dislocation dynamics and molecular dynamics simulations, we investigate the strain …
[HTML][HTML] Microstructure and mechanical properties of sintered Ag particles with flake and spherical shape from nano to micro size
C Chen, K Suganuma - Materials & Design, 2019 - Elsevier
This work firstly evaluated the microscale mechanical properties of sintered Ag, consisting of
various Ag particles of a flake shape and spherical shape from nano to micro size …
various Ag particles of a flake shape and spherical shape from nano to micro size …
Multiscale modelling of precipitation hardening in Al–Cu alloys: Dislocation dynamics simulations and experimental validation
R Santos-Güemes, B Bellón, G Esteban-Manzanares… - Acta Materialia, 2020 - Elsevier
The mechanisms of dislocation/precipitate interactions were analyzed in an Al–Cu alloy
containing a homogeneous dispersion of θ′ precipitates by means of discrete dislocation …
containing a homogeneous dispersion of θ′ precipitates by means of discrete dislocation …
Fatigue deformation in a polycrystalline nickel base superalloy at intermediate and high temperature: Competing failure modes
The microstructural configurations that favor early strain localization and fatigue crack
initiation at intermediate and high temperature (400° C–650° C) have been investigated …
initiation at intermediate and high temperature (400° C–650° C) have been investigated …
Hierarchical multiscale crystal plasticity framework for plasticity and strain hardening of multi-principal element alloys
The multi-principal element alloys (MPEAs) exhibit the unprecedented combinations of the
excellent mechanical properties, especially high strength and good ductility. However, the …
excellent mechanical properties, especially high strength and good ductility. However, the …
The role of twinning deformation on the hardening response of polycrystalline magnesium from discrete dislocation dynamics simulations
The deformation of micro-twinned polycrystalline magnesium (Mg) was studied using three-
dimensional discrete dislocation dynamics (DDD). A systematic interaction model between …
dimensional discrete dislocation dynamics (DDD). A systematic interaction model between …
On the origin of the Hall–Petch law: A 3D-dislocation dynamics simulation investigation
M Jiang, G Monnet, B Devincre - Acta Materialia, 2021 - Elsevier
Abstract 3D-DD simulations are performed with cubic grains ranging from 1 to 10 µm to
investigate the physical mechanisms at the origin of the Hall–Petch law. In particular, the …
investigate the physical mechanisms at the origin of the Hall–Petch law. In particular, the …
On elastic gaps in strain gradient plasticity: 3D discrete dislocation dynamics investigation
Although presenting attractive features in dealing with small-scale size effects, strain
gradient plasticity (SGP) theories can lead to uncommon phenomena for some boundary …
gradient plasticity (SGP) theories can lead to uncommon phenomena for some boundary …