A parallel discrete dislocation dynamics/kinetic Monte Carlo method to study non-conservative plastic processes

C McElfresh, N Bertin, S Aubry, J Marian - Computational Materials Science, 2022 - Elsevier
Non-conservative processes play a fundamental role in plasticity and are behind important
macroscopic phenomena such as creep, dynamic strain aging, loop raft formation, etc. In the …

Billion-atom synchronous parallel kinetic Monte Carlo simulations of critical 3D Ising systems

E Martínez, PR Monasterio, J Marian - Journal of Computational Physics, 2011 - Elsevier
An extension of the synchronous parallel kinetic Monte Carlo (spkMC) algorithm developed
by Martinez et al.[J. Comp. Phys. 227 (2008) 3804] to discrete lattices is presented. The …

Radiation-induced mixing between metals of low solid solubility

L Zhang, MJ Demkowicz - Acta materialia, 2014 - Elsevier
We use molecular dynamics to study radiation-induced mixing between low solid solubility
metals, focusing on the effect of liquid phase properties, by sequentially performing multiple …

A GPU-based parallel object kinetic Monte Carlo algorithm for the evolution of defects in irradiated materials

F Jiménez, CJ Ortiz - Computational Materials Science, 2016 - Elsevier
In this work we present a parallel Object kinetic Monte Carlo (OkMC) computational model
implemented using GPUs (graphics processing units) computing to simulate the evolution of …

Coalescence dynamics of prismatic dislocation loops due to vacancy supersaturation

C McElfresh, N Bertin, S Aubry, J Marian - Physical Review Materials, 2022 - APS
Recovery processes in metals with a high defect concentration are at the heart of a structural
alloy's usability in engineering applications. However, such processes take place via …

Analysis of the propylene epoxidation mechanism on supported gold nanoparticles

CH Turner, J Ji, Z Lu, Y Lei - Chemical Engineering Science, 2017 - Elsevier
The direct propylene epoxidation reaction has been investigated experimentally in the past
by several different groups, and gold-based catalysts tend to provide high selectivity for …

Kinetic Monte Carlo simulations of irradiation effects

C Becquart, N Mousseau, C Domain - 2020 - lilloa.univ-lille.fr
Monte Carlo (MC) techniques are among the most used techniques for modeling materials
at the atomic scale, with those of molecular dynamics. The name MC comes from the fact …

Mesoscopic to macroscopic electron transfer by hopping in a crystal network of cytochromes

J Huang, J Zarzycki, MR Gunner… - Journal of the …, 2020 - ACS Publications
Rapid and directed electron transfer (ET) is essential for biological processes. While the
rates of ET over 1–2 nm in proteins can largely be described by simplified nonadiabatic …

Synchronous parallel spatially resolved stochastic cluster dynamics

A Dunn, R Dingreville, E Martínez… - Computational Materials …, 2016 - Elsevier
In this study, a spatially resolved stochastic cluster dynamics (SRSCD) model for radiation
damage accumulation in metals is implemented using a synchronous parallel kinetic Monte …

A stochastic solver based on the residence time algorithm for crystal plasticity models

Q Yu, E Martínez, J Segurado, J Marian - Computational Mechanics, 2021 - Springer
The deformation of crystalline materials by dislocation motion takes place in discrete
amounts determined by the Burgers vector. Dislocations may move individually or in …