Dislocation subgrain structures and modeling the plastic hardening of metallic single crystals

BL Hansen, CA Bronkhorst, M Ortiz - Modelling and Simulation in …, 2010 - iopscience.iop.org
A single crystal plasticity theory for insertion into finite element simulation is formulated using
sequential laminates to model subgrain dislocation structures. It is known that local models …

Computational modelling of single crystals

AM Cuitino, M Ortiz - … and Simulation in Materials Science and …, 1993 - iopscience.iop.org
The physical basis of computationally tractable models of crystalline plasticity is reviewed. A
statistical mechanical model of dislocation motion through forest dislocations is formulated …

Modeling the evolution in microstructure and properties during plastic deformation of fcc-metals and alloys–an approach towards a unified model

E Nes, K Marthinsen - Materials Science and Engineering: A, 2002 - Elsevier
A new approach to the modeling of work hardening during plastic deformation of fcc-metals
and alloys has been recently proposed by the present authors. The model is based on a …

Slip band formation and mobile dislocation density generation in high rate deformation of single fcc crystals

ZQ Wang, IJ Beyerlein, R LeSar - Philosophical Magazine, 2008 - Taylor & Francis
The mechanisms for the nucleation, thickening, and growth of crystallographic slip bands
from the sub-nanoscale to the microscale are studied using three-dimensional dislocation …

Modeling the evolution of crystallographic dislocation density in crystal plasticity

A Arsenlis, DM Parks - Journal of the Mechanics and Physics of Solids, 2002 - Elsevier
Dislocations are the most important material defects in crystal plasticity, and although
dislocation mechanics has long been understood as the underlying physical basis for …

[图书][B] Strengthening mechanisms in crystal plasticity

A Argon - 2007 - books.google.com
The strengthening of metals by a variety of means has been of interest over much of history.
However, the elucidation of the actual mechanisms involved in the processes of alloying and …

Activation energy for nucleation of partial dislocation from grain boundaries

MG McPhie, S Berbenni, M Cherkaoui - Computational materials science, 2012 - Elsevier
The nudged elastic band method has been used to calculate the activation energies for the
nucleation of the leading partial dislocation from grain boundaries in pure fcc copper under …

Modelling of work hardening and stress saturation in FCC metals

E Nes - Progress in materials science, 1997 - Elsevier
A work hardening theory has been developed based on a microstructural concept
comprising three elements; the cell/subgrain size, δ, the dislocation density inside the cells …

Dynamic recrystallization under warm deformation of polycrystalline copper

A Belyakov, H Miura, T Sakai - ISIJ international, 1998 - jstage.jst.go.jp
Structural changestaking place under warmdeformation of pure copperwere studied in
compression at temperatures ranging from 473 to 673K (0.35 to 0.50 T~) under strain rates …

Dislocation-density mechanisms for void interactions in crystalline materials

P Shanthraj, MA Zikry - International Journal of Plasticity, 2012 - Elsevier
Dislocation-density based evolution formulations that are related to a heterogeneous
microstructure and is representative of different crystalline interactions, have been …