Modeling and simulations of experimentally-observed dislocation substructures based on field theory of multiscale plasticity (FTMP) combined with TEM and EBSD …

T Hasebe, M Sugiyama, H Adachi, S Fukutani… - Materials …, 2014 - jstage.jst.go.jp
Critical significance of dislocation substructures evolving during elasto-plastic deformation
within metallic crystalline materials for controlling their mechanical responses has been …

Strain rate and temperature sensitive multi-level crystal plasticity model for large plastic deformation behavior: Application to AZ31 magnesium alloy

M Ardeljan, IJ Beyerlein, BA McWilliams… - International Journal of …, 2016 - Elsevier
In this work, we develop a multi-level constitutive model for polycrystalline metals that
deform by a combination of elasticity, slip and deformation twinning. It involves a two-level …

Dislocation flow turbulence simultaneously enhances strength and ductility

Y Chen, H Feng, J Li, B Liu, C Jiang… - Proceedings of the …, 2024 - National Acad Sciences
Multi-principal element alloys (MPEAs) exhibit outstanding strength attributed to the complex
dislocation dynamics as compared to conventional alloys. Here, we develop an atomic …

Machine learning-enabled self-consistent parametrically-upscaled crystal plasticity model for Ni-based superalloys

G Weber, M Pinz, S Ghosh - Computer Methods in Applied Mechanics and …, 2022 - Elsevier
This paper introduces a concurrent multiscale modeling framework for developing
parametrically-upscaled crystal plasticity models (PUCPM) for crystalline metals that are …

Effect of 3D representative volume element (RVE) thickness on stress and strain partitioning in crystal plasticity simulations of multi-phase materials

F Qayyum, AA Chaudhry, S Guk, M Schmidtchen… - Crystals, 2020 - mdpi.com
Crystal plasticity simulations help to understand the local deformation behavior of multi-
phase materials based on the microstructural attributes. The results of such simulations are …

Effects of element type on accuracy of microstructural mesh crystal plasticity finite element simulations and comparisons with elasto-viscoplastic fast Fourier transform …

J Weiss, M Knezevic - Computational Materials Science, 2024 - Elsevier
In this work, we performed massive crystal plasticity finite element (CPFE) simulations to
reveal the effects of element type on the accuracy of predicted mechanical fields and overall …

Integrated experimental–simulation analysis of stress and strain partitioning in multiphase alloys

CC Tasan, M Diehl, D Yan, C Zambaldi, P Shanthraj… - Acta Materialia, 2014 - Elsevier
The mechanical response of multiphase alloys is governed by the microscopic strain and
stress partitioning behavior among microstructural constituents. However, due to limitations …

Complex strengthening mechanisms in the NbMoTaW multi-principal element alloy

XG Li, C Chen, H Zheng, Y Zuo, SP Ong - npj Computational Materials, 2020 - nature.com
Refractory multi-principal element alloys (MPEAs) have exceptional mechanical properties,
including high strength-to-weight ratio and fracture toughness, at high temperatures. Here …

A temporal graph neural network for cross-scale modelling of polycrystals considering microstructure interaction

Y Hu, G Zhou, MG Lee, P Wu, D Li - International Journal of Plasticity, 2024 - Elsevier
Abstract Machine learning (ML) based methods have achieved preliminary success in the
constitutive modeling for single crystals or homogenized polycrystals with remarkable …

Alloy design for mechanical properties: conquering the length scales

IJ Beyerlein, S Xu, J Llorca, JA El-Awady… - MRS …, 2019 - cambridge.org
Predicting the structural response of advanced multiphase alloys and understanding the
underlying microscopic mechanisms that are responsible for it are two critically important …