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 …
Roadmap on multiscale materials modeling
Modeling and simulation is transforming modern materials science, becoming an important
tool for the discovery of new materials and material phenomena, for gaining insight into the …
tool for the discovery of new materials and material phenomena, for gaining insight into the …
Enhanced radiation tolerance of the Ni-Co-Cr-Fe high-entropy alloy as revealed from primary damage
High-entropy alloys (HEAs) have received much attention for the development of nuclear
materials because of their excellent irradiation tolerance. In the present study, the …
materials because of their excellent irradiation tolerance. In the present study, the …
Analyses of dislocation effects on plastic deformation
This paper reviews the dislocation based models that have been used until now to consider
dislocation effects on the plastic deformation in the crystalline material. We separate two …
dislocation effects on the plastic deformation in the crystalline material. We separate two …
The role of slow screw dislocations in controlling fast strain avalanche dynamics in body-centered cubic metals
Plasticity in body centered cubic (BCC) crystals is shown to be controlled by slow screw
dislocation motion, owing to the thermally-activated process of kink pair nucleation and …
dislocation motion, owing to the thermally-activated process of kink pair nucleation and …
Dislocation density-based plasticity model from massive discrete dislocation dynamics database
We present a dislocation density-based strain hardening model for single crystal copper
through a systematic coarse-graining analysis of more than 200 discrete dislocation …
through a systematic coarse-graining analysis of more than 200 discrete dislocation …
Nanoscale imaging of the full strain tensor of specific dislocations extracted from a bulk sample
Lattice defects play a key role in determining the properties of crystalline materials. Probing
the three-dimensional (3D) lattice strains that govern their interactions remains a challenge …
the three-dimensional (3D) lattice strains that govern their interactions remains a challenge …
Cyclic plasticity and thermomechanical alleviation in titanium alloys
Cyclic behaviour of titanium alloy IMI834 has been investigated with a new thermo-
mechanically coupled discrete dislocation plasticity formulation, integrated with …
mechanically coupled discrete dislocation plasticity formulation, integrated with …
Implementation of annihilation and junction reactions in vector density-based continuum dislocation dynamics
P Lin, A El-Azab - Modelling and Simulation in Materials Science …, 2020 - iopscience.iop.org
In a continuum dislocation dynamics (CDD) formulation by Xia and El-Azab (2015 Modelling
Simul. Mater. Sci. Eng. 23 055009), dislocations are represented by a set of vector density …
Simul. Mater. Sci. Eng. 23 055009), dislocations are represented by a set of vector density …
[HTML][HTML] Deformation assisted nucleation of continuous nanoprecipitates in Mg–Al alloys
Conventional aging of magnesium alloys results in a low number density of laths providing
poor precipitate strengthening. We demonstrate that deformation driven precipitation (DDP) …
poor precipitate strengthening. We demonstrate that deformation driven precipitation (DDP) …