Journal ArticleDOI
Response to "Shear Impossibility—Comments on 'Void Growth by Dislocation Emission' and 'Void Growth in Metals'"
Reads0
Chats0
TLDR
In this article, it was shown that the closed loop emitted from the surface of the void does not by itself expand the void, but instead transfers material to the void by the outward transfer of the material.About:
This article is published in Scripta Materialia.The article was published on 2010-07-01. It has received 16 citations till now. The article focuses on the topics: Dislocation.read more
Citations
More filters
Journal ArticleDOI
Growth and collapse of nanovoids in tantalum monocrystals
TL;DR: In this paper, the growth and collapse of nanoscale voids are investigated for tantalum (a model body-centered cubic metal) under different stress states and strain rates by molecular dynamics (MD).
Journal ArticleDOI
Ductile tensile failure in metals through initiation and growth of nanosized voids
TL;DR: In this paper, the authors reveal the initiation of ductile failure in metals at the nanometer scale by molecular dynamics simulations coupled with a novel analytical model, which proceeds by the emission of a special type of dislocation shear loop, which can expand as a partial or perfect dislocation.
Journal ArticleDOI
Molecular dynamics simulations of shock-induced plasticity in tantalum
Diego Tramontina,Paul Erhart,Paul Erhart,Timothy C. Germann,James Hawreliak,Andrew Higginbotham,Nigel Park,Ramon Ravelo,Ramon Ravelo,Alexander Stukowski,Matthew Suggit,Yizhe Tang,Justin Wark,Eduardo M. Bringa +13 more
TL;DR: In this article, non-equilibrium molecular dynamics (NEMD) simulations of shock wave compression along the [001] direction in monocrystalline Tantalum, including pre-existing defects which act as dislocation sources, are presented.
Journal ArticleDOI
Atomistic insights into dislocation-based mechanisms of void growth and coalescence
TL;DR: In this article, a large-scale simulation of aluminum cavitation was performed and the authors found that the dislocation propagation-based void growth mechanism in a representative metal, namely Aluminum, exhibits a rich size-dependent behavior across various material length scales.
Journal ArticleDOI
Plastic deformation of a porous bcc metal containing nanometer sized voids
Carlos J. Ruestes,Carlos J. Ruestes,Eduardo M. Bringa,Alexander Stukowski,J.D. Rodriguez Nieva,Yizhe Tang,Marc A. Meyers +6 more
TL;DR: Ruestes, Carlos Javier as mentioned in this paper, and Javier, Federico as mentioned in this paper presented a study on the impact of nuclear power on the area of Energia Nuclear in Argentina.
References
More filters
Book
The mathematical theory of plasticity
TL;DR: In this paper, the solution of two-dimensional non-steady motion problems in two dimensions is studied. But the solution is not a solution to the problem in three dimensions.
Journal ArticleDOI
Dislocation nucleation from a crack tip : an analysis based on the Peierls concept
TL;DR: In this paper, a periodic relation between shear stress and atomic shear displacement is assumed to hold along the most highly stressed slip plane emanating from a crack tip, which allows some small slip displacement to occur near the tip in response to small applied loading and, with increase in loading, the incipient dislocation configuration becomes unstable and leads to a fully formed dislocation which is driven away from the crack.
Journal ArticleDOI
Void growth by dislocation emission
TL;DR: In this paper, a criterion for the emission of a dislocation from the surface of a void under remote tension is formulated, analogous to Rice and Thomsons criterion for crack blunting by dislocation emission from the crack tip.
Journal ArticleDOI
Void growth in metals: Atomistic calculations
TL;DR: In this paper, the authors used LAMMPS simulations in monocrystalline and bicrystalline copper to reveal void growth mechanisms and found that the emission of dislocations from voids is the first stage, and their reaction and interaction is the second stage.
Journal ArticleDOI
Void initiation in fcc metals: Effect of loading orientation and nanocrystalline effects
TL;DR: In this paper, it was shown that the emission and outward expansion of special dislocation loops, nucleated at the surface of nanosized voids, are responsible for the outward flux of matter, promoting their growth.