Avalanches and plastic flow in crystal plasticity: an overview

S Papanikolaou, Y Cui, N Ghoniem - Modelling and Simulation in …, 2017 - iopscience.iop.org
Crystal plasticity is mediated through dislocations, which form knotted configurations in a
complex energy landscape. Once they disentangle and move, they may also be impeded by …

Mechanical properties and deformation behaviours of submicron-sized Cu–Al single crystals

R Niu, X An, L Li, Z Zhang, YW Mai, X Liao - Acta Materialia, 2022 - Elsevier
Tuning stacking fault energy (SFE) via alloying provides a robust protocol to manipulate
deformation mechanism and consequently the mechanical properties of metallic materials …

Recent progress in discrete dislocation dynamics and its applications to micro plasticity

G Po, MS Mohamed, T Crosby, C Erel, A El-Azab… - Jom, 2014 - Springer
We present a self-contained review of the discrete dislocation dynamics (DDD) method for
the numerical investigation of plasticity in crystals, focusing on recent development and …

Discrete dislocation dynamics simulations of plasticity at small scales

C Zhou, SB Biner, R LeSar - Acta Materialia, 2010 - Elsevier
Discrete dislocation dynamics simulations in three dimensions have been used to examine
the role of dislocation multiplication and mobility on the plasticity in small samples under …

Effect of climb on dislocation mechanisms and creep rates in γ′-strengthened Ni base superalloy single crystals: A discrete dislocation dynamics study

SMH Haghighat, G Eggeler, D Raabe - Acta Materialia, 2013 - Elsevier
Creep of single-crystal superalloys is governed by dislocation glide, climb, reactions and
annihilation. Discrete three-dimensional (3D) dislocation dynamics (DDD) simulations are …

[图书][B] Size effects in plasticity: from macro to nano

G Voyiadjis, M Yaghoobi - 2019 - books.google.com
Size Effects in Plasticity: From Macro to Nano provides concise explanations of all available
methods in this area, from atomistic simulation, to non-local continuum models to capture …

Atomistic simulations and continuum modeling of dislocation nucleation and strength in gold nanowires

CR Weinberger, AT Jennings, K Kang… - Journal of the Mechanics …, 2012 - Elsevier
The strength of true metallic nanowires and nanopillars (diameters below 100nm) is known
to be higher than the strength of bulk metals and is most likely controlled by dislocation …

Deformation of micron-sized aluminium bi-crystal pillars

KS Ng, AHW Ngan - Philosophical Magazine, 2009 - Taylor & Francis
The deformation of micron-sized single-crystals is jumpy and stochastic, and this may pose
potential formability and reliability problems if components for future micro-machines are to …

Dislocation interactions and low-angle grain boundary strengthening

B Liu, D Raabe, P Eisenlohr, F Roters, A Arsenlis… - Acta Materialia, 2011 - Elsevier
The transmission of an incoming dislocation through a symmetrical low-angle tilt grain
boundary (GB) is studied for {110}〈 111〉 slip systems in body-centered cubic metals using …

The scaling exponent in the size effect of small scale plastic deformation

DJ Dunstan, AJ Bushby - International Journal of Plasticity, 2013 - Elsevier
Compression testing of micropillars (yield stress as a function of pillar diameter) has been
interpreted in terms of very different scaling exponents for the size effect (smaller is stronger) …