91 citations · 195 across the 16 of their papers we have counts for
17 papers
The line bundle regime and the scale-dependence of continuum dislocation dynamics
Joseph Pierre Anderson, Anter El-Azab
Continuum dislocation dynamics (CDD) has become the state-of-the-art theoretical approach for mesoscale dislocation plasticity of metals. Within this approach, there are multiple C…
Dislocation correlations and the continuum dynamics of the weak line bundle ensemble
Joseph Pierre Anderson, Anter El-Azab
Progress toward a first-principles theory of plasticity and work-hardening is currently impeded by an insufficient picture of dislocation kinetics (the dynamic effect of driving fo…
Evolution of dislocation loops in irradiated α-Uranium: An atomistically-informed cluster dynamics investigation
Sanjoy Kumar Mazumder, Tiankai Yao, Anter El-Azab
An atomistically informed mean field cluster dynamics model has been presented to investigate the nucleation and growth of defect loops in irradiated α-U. TEM analysis of neutron i…
Plasticity in irradiated FeCrAl nanopillars investigated using discrete dislocation dynamics
Yash Pachaury, George Warren, Janelle P. Wharry +2
In this paper, we investigate plasticity in irradiated FeCrAl nanopillars using discrete dislocation dynamics simulations (DDD), with comparisons to transmission electron microscop…
A data driven approach for cross-slip modelling in continuum dislocation dynamics
Vignesh Vivekanandan, Ben Anglin, Anter El-Azab
Cross-slip is a thermally activated process by which screw dislocation changes its glide plane to another slip plane sharing the same Burgers vector. The rate at which this process…
Quantitative assessment of perturbation theory-based lattice thermal conductivity models using quasi-continuum approximation
Ahmed Hamed, Anter El-Azab
The impact of dispersion relations, anisotropy, and Brillouin zone structure on intrinsic phonon scattering rates has been assessed within the harmonic approximation-perturbation t…
Atomistically-informed modeling of point defect clustering and evolution in irradiated ThO2
Sanjoy Kumar Mazumder, Maniesha Kaur Salaken Singh, Tomohisa Kumagai +1
A cluster dynamics (CD) model has been developed to investigate the nucleation and growth of point defect clusters, i.e., interstitial prismatic loops and nanoscale and sub-nanosca…
Thermal Energy Transport in Oxide Nuclear Fuel
David H. Hurley, Anter El-Azab, Matthew S. Bryan +13
To efficiently capture the energy of the nuclear bond, advanced nuclear reactor concepts seek solid fuels that must withstand unprecedented temperature and radiation extremes. In t…
A generalized 3D elastic model for nanoscale, self-assembled oxide-metal thin films with pillar-in-matrix configurations
Kyle Starkey, Ahmad Ahmad, Juanjuan Lu +2
In recent years, functional oxide-metal based vertically aligned nanocomposite (VAN) thin films have gained interest due to their intriguing physical properties and multifunctional…
A First Experiment at Interfacing Crystal Plasticity and Continuum Dislocation Dynamics
Khaled SharafEldin, Peng Lin, Vignesh Vivekanandan +3
A computational approach has been developed for the analysis of the properties of 3D dislocation substructures generated by the vector density continuum dislocation dynamics (CDD),…
Incorporating point defect generation due to jog formation into the vector density-based continuum dislocation dynamics approach
Peng Lin, Vignesh Vivekanandan, Benjamin Anglin +2
During plastic deformation of crystalline materials, point defects such as vacancies and interstitials are generated by jogs on moving dislocations. A detailed model for jog format…
On the computational solution of vector-density based continuum dislocation dynamics models: a comparison of two plastic distortion and stress update algorithms
Peng Lin, Vignesh Vivekanandan, Kyle Starkey +3
Continuum dislocation dynamics models of mesoscale plasticity consist of dislocation transport-reaction equations coupled with crystal mechanics equations. The coupling between the…
Discrete Dislocation Dynamics for Crystal RVEs. Part 1: Periodic Loop Kinematics
Yash Pachaury, Giacomo Po, Anter El-Azab
A novel implementation of the dislocation flux boundary condition in discrete dislocation dynamics is presented. The continuity of the individual dislocation loops in a periodic re…
On the implementation of dislocation reactions in continuum dislocation dynamics modeling of mesoscale plasticity
Vignesh Vivekanandan, Peng Lin, Grethe Winther +1
The continuum dislocation dynamics framework for mesoscale plasticity is intended to capture the dislocation density evolution and the deformation of crystals when subjected to mec…
On the three-dimensional spatial correlations of curved dislocation systems
Joseph Anderson, Anter El-Azab
Coarse-grained descriptions of dislocation motion in crystalline metals inherently represent a loss of information regarding dislocation-dislocation interactions. In the present wo…
Implementation of annihilation and junction reactions in vector density-based continuum dislocation dynamics
Peng Lin, Anter El-Azab
In a continuum dislocation dynamics formulation by Xia and El-Azab, dislocations are represented by a set of vector density fields, one per crystallographic slip systems. The space…
Peak intrinsic thermal conductivity in non-metallic solids and new interpretation of experimental data for argon
Ahmed Hamed, Anter El-Azab
The inelastic nature of 3-phonon processes is investigated within the framework of perturbation theory and linearized Boltzmann Transport Equation. By considering the energy conser…