A new visco-plastic self-consistent formulation implicit in dislocation-based hardening within implicit finite elements: Application to high strain rate and impact …

M Zecevic, M Knezevic - Computer Methods in Applied Mechanics and …, 2018 - Elsevier
… Visco-plastic power-law flow rule, commonly used within crystal plasticity … finite element
implementation of a visco-plastic self-consistent polycrystal model that is implicit in dislocation-…

An implicit formulation of the elasto-plastic self-consistent polycrystal plasticity model and its implementation in implicit finite elements

M Zecevic, M Knezevic - Mechanics of Materials, 2019 - Elsevier
… followed by the self-consistent homogenization need to be … formulation, this paper describes
an implicit formulation of the EPSC model and its implementation in implicit finite elements

Consistent formulation for the Discrete-Continuous Model: Improving complex dislocation dynamics simulations

O Jamond, R Gatti, A Roos, B Devincre - International Journal of Plasticity, 2016 - Elsevier
… efficient formulation of the Discrete-Continuous Model (DCM) for the simulation of 3D
dislocation dynamics … In the following we call this first kind of plastic incompatibility ”intra-element“ …

Coupling elasto-plastic self-consistent crystal plasticity and implicit finite elements: applications to compression, cyclic tension-compression, and bending to large …

M Zecevic, IJ Beyerlein, M Knezevic - International Journal of Plasticity, 2017 - Elsevier
… We use the elasto-plastic self-consistent (EPSC) model for the … modeling it as an elasto-plastic
inclusion in the homogeneous … α, χ = 0.9 is a dislocation interaction parameter, L αα′ is a …

An efficient 2D discrete dislocation Dynamics-XFEM coupling framework and its application to polycrystal plasticity

M Huang, S Huang, S Liang, Y Zhu, Z Li - International Journal of Plasticity, 2020 - Elsevier
… discrete dislocation dynamics (DDD) simulates the plastic … the finite element method (FEM)
or boundary element method (… solution whose formula can be found in any dislocation theory …

A peridynamic approach to solving general discrete dislocation dynamics problems in plasticity and fracture: Part I. Model description and verification

W Dong, H Liu, J Du, X Zhang, M Huang, Z Li… - International Journal of …, 2022 - Elsevier
… When the peridynamic bond crosses a dislocation slip plane, a plastic slip needs to be …
We apply the classical DDD superposition framework for the PD formulation of DDD, and …

[PDF][PDF] Boundary Condition for Dislocation Dynamic Simulation in BCC Crystal

S Dai, F Wang, Y Xiang, JZ Yang… - CSIAM Transactions on …, 2021 - researchgate.net
… as finite element method (FEM) or boundary element method (… of crystal plasticity [31, 39–41].
These models work well when … Parametric dislocation dynamics: A thermodynamics-based …

Thermodynamic considerations on a class of dislocation-based constitutive models

R Wu, M Zaiser - Journal of the Mechanics and Physics of Solids, 2022 - Elsevier
… Typically, such constitutive models are not formulated in a … are largely absent from discrete
dislocation dynamics (DDD) … the plastic strain rate and the change in dislocation densities in …

Self-energy, line tension and bow-out of grain boundary dislocation sources

R Schouwenaars - International Journal of Plasticity, 2020 - Elsevier
… Experimental observation and numerical modelling of plastic … rules can only be formulated
as approximate guidelines. For … Discrete dislocation dynamics (DDD) has the advantage over …

[HTML][HTML] Viscoplastic self-consistent formulation as generalized material model for solid mechanics applications

M Zecevic, RA Lebensohn, M Rogers, J Moore… - … in Engineering Science, 2021 - Elsevier
dynamic deformation conditions, their elastic properties are pressure-dependent. Single-crystal
plastic deformation occurs by dislocation … a reference/iso-parametric element. The map …