[HTML][HTML] Dislocation structures formation induced by thermal stress in additive manufacturing: Multiscale crystal plasticity modeling of dislocation transport
The motion of dislocations governs the plastic deformation of crystalline materials, which in
turn determines the mechanical properties. The complex thermal history, large temperature …
turn determines the mechanical properties. The complex thermal history, large temperature …
Analytic model of dislocation density evolution in fcc polycrystals accounting for dislocation generation, storage, and dynamic recovery mechanisms
A Hunter, DL Preston - International Journal of Plasticity, 2022 - Elsevier
An analytic model of the evolution of dislocation density in fcc polycrystals is described. The
evolution equations approximately account for most known dislocation storage, dynamic …
evolution equations approximately account for most known dislocation storage, dynamic …
Extensive 3D mapping of dislocation structures in bulk aluminum
Thermomechanical processing such as annealing is one of the main methods to tailor the
mechanical properties of materials, however, much is unknown about the reorganization of …
mechanical properties of materials, however, much is unknown about the reorganization of …
[HTML][HTML] Understanding the strain localization in additively manufactured materials: Micro-scale tensile tests and crystal plasticity modeling
Metallic parts fabricated by additive manufacturing (AM) usually exhibit unique
microstructures and non-negligible residual stresses compared with the counterparts …
microstructures and non-negligible residual stresses compared with the counterparts …
A unification of finite deformation J2 Von-Mises plasticity and quantitative dislocation mechanics
We present a framework which unifies classical phenomenological J 2 and crystal plasticity
theories with quantitative dislocation mechanics. The theory allows the computation of stress …
theories with quantitative dislocation mechanics. The theory allows the computation of stress …
[HTML][HTML] Eulerian rates of elastic incompatibilities applied to size-dependent hardening in finite torsion
MB Rubin, L Bardella - Journal of the Mechanics and Physics of Solids, 2024 - Elsevier
Measures of rates of elastic incompatibilities are developed within an Eulerian framework for
finite-deformation response of anisotropic elastic–inelastic materials. Such framework relies …
finite-deformation response of anisotropic elastic–inelastic materials. Such framework relies …
An efficient and minimalist scheme for continuum dislocation dynamics
Continuum dislocation dynamics methods have received considerable interests for
simulating dislocation microstructures at the meso-scale, serving as potential tools for …
simulating dislocation microstructures at the meso-scale, serving as potential tools for …
On the implementation of dislocation reactions in continuum dislocation dynamics modeling of mesoscale plasticity
The continuum dislocation dynamics framework for mesoscale plasticity is intended to
capture the dislocation density evolution and the deformation of crystals when subjected to …
capture the dislocation density evolution and the deformation of crystals when subjected to …
Discontinuous yielding of pristine micro-crystals
We study the mechanical response of a dislocation-free 2D crystal under homogenous
shear using a new mesoscopic approach to crystal plasticity, a Landau-type theory …
shear using a new mesoscopic approach to crystal plasticity, a Landau-type theory …
Development of mean-field continuum dislocation kinematics with junction reactions using de Rham currents and graph theory
K Starkey, T Hochrainer, A El-Azab - Journal of the Mechanics and Physics …, 2022 - Elsevier
An accurate description of the evolution of dislocation networks is an essential part of
discrete and continuum dislocation dynamics models. These networks evolve by motion of …
discrete and continuum dislocation dynamics models. These networks evolve by motion of …