Large-scale computations in chemistry: a bird's eye view of a vibrant field

AV Akimov, OV Prezhdo - Chemical reviews, 2015 - ACS Publications
1.1. The Meaning of “Large Scale” In general, the term “large scale” can have one of the
following five meanings in computational chemistry:(1) large size: power-law and …

A review of fatigue behavior in nanocrystalline metals

HA Padilla, BL Boyce - Experimental mechanics, 2010 - Springer
Nanocrystalline metals have been shown to exhibit unique mechanical behavior, including
break-down in Hall-Petch behavior, suppression of dislocation-mediated plasticity, induction …

Modified embedded atom method potential for Al, Si, Mg, Cu, and Fe alloys

B Jelinek, S Groh, MF Horstemeyer, J Houze… - Physical Review B …, 2012 - APS
A set of modified embedded-atom method (MEAM) potentials for the interactions between Al,
Si, Mg, Cu, and Fe was developed from a combination of each element's MEAM potential in …

Breaking through the strength-ductility trade-off in graphene reinforced Ti6Al4V composites

Y Yang, M Liu, S Zhou, W Ren, Q Zhou, L Shi - Journal of Alloys and …, 2021 - Elsevier
The graphene network (GN) reinforced Ti6Al4V composites with concurrently enhanced
strength and ductility are fabricated based on powder metallurgy, in which the GN interlocks …

Strength asymmetry in nanocrystalline metals under multiaxial loading

AC Lund, CA Schuh - Acta materialia, 2005 - Elsevier
Molecular simulations of nanocrystalline nickel are used to investigate the effect of loading
state on mechanical response. Simulations at grain sizes near the amorphous limit (2–4nm) …

Ductile vs. brittle behavior of pre-cracked nanocrystalline and ultrafine-grained materials

IA Ovid'Ko, AG Sheinerman - Acta Materialia, 2010 - Elsevier
Aspects of the ductile vs. brittle response of nanocrystalline and ultrafine-grained (UFG)
materials are theoretically examined. The focus of this study is on the combined effects of …

Tension/compression strength asymmetry in a simulated nanocrystalline metal

AC Lund, TG Nieh, CA Schuh - Physical Review B, 2004 - APS
We explore asymmetries in the plastic deformation of idealized nanocrystalline nickel
through static molecular simulations. We find that both the yield and flow stresses of these …

The role of compositional complexity in the increased fracture resistance of high entropy alloys: Multi-scale atomistic simulations

D Farkas - Computational Materials Science, 2024 - Elsevier
This paper investigates the role of compositional complexity in the fracture behavior of a
model quinary high entropy FCC alloy. The simulations are based on a multi-scale …

Fatigue-induced grain coarsening in nanocrystalline platinum films

RA Meirom, DH Alsem, AL Romasco, T Clark… - Acta Materialia, 2011 - Elsevier
Mechanisms to explain the unique mechanical behavior of nanograined metals focus
primarily on grain and grain boundary mobility. In most nanograined metal materials …

Modeling size effects on fracture toughness by dislocation dynamics

XH Zeng, A Hartmaier - Acta Materialia, 2010 - Elsevier
The effects of grain size and of crack-tip blunting radius on the fracture toughness of
tungsten polycrystals are studied by using a combined dislocation dynamics/cohesive zone …