A modified kinematic hardening model considering hetero-deformation induced hardening for bimodal structure based on crystal plasticity

Y Zhang, H Chen, YF Jia, DF Li, GJ Yuan… - International Journal of …, 2021 - Elsevier
Heterogeneous structures (HS) have been reported to overcome the longstanding challenge
of the trade-off between strength and ductility in metallic materials. The deformation …

Atomistic interpretation of extra temperature and strain-rate sensitivity of heterogeneous dislocation nucleation in a multi-principal-element alloy

SC Dai, ZC Xie, YJ Wang - International Journal of Plasticity, 2022 - Elsevier
Incipient plasticity of crystals is usually initiated from versatile pre-existing crystalline defects
of different geometries and length scales that formed during materials fabrication and …

Machine learning–based reduce order crystal plasticity modeling for ICME applications

M Yuan, S Paradiso, B Meredig… - Integrating Materials and …, 2018 - Springer
Crystal plasticity simulation is a widely used technique for studying the deformation
processing of polycrystalline materials. However, inclusion of crystal plasticity simulation into …

Overview of constitutive laws, kinematics, homogenization and multiscale methods in crystal plasticity finite-element modeling: Theory, experiments, applications

F Roters, P Eisenlohr, L Hantcherli, DD Tjahjanto… - Acta materialia, 2010 - Elsevier
This article reviews continuum-based variational formulations for describing the elastic–
plastic deformation of anisotropic heterogeneous crystalline matter. These approaches …

Multiscale constitutive modeling of additively manufactured Al–Si–Mg alloys based on measured phase stresses and dislocation density

XX Zhang, D Knoop, H Andrä, S Harjo… - International Journal of …, 2021 - Elsevier
To better understand and predict the mechanical properties of additive manufacturing (AM)
Al–Si–Mg alloys, developing a physically-based constitutive model is crucial. Among …

Investigation of strain partition behavior in the lamellar microstructure of dual-phase titanium alloy based on crystal plasticity simulations

M Zhang, B Tang, L Wang, K Li, B Yin, Z Zhang… - Materials Science and …, 2023 - Elsevier
A well-designed microstructure plays a crucial part in achieving favorable properties and
optimizing the service performances of titanium alloys, requiring thorough investigations of …

Ab initio-informed phase-field modeling of dislocation core structures in equal-molar CoNiRu multi-principal element alloys

Y Su, S Xu, IJ Beyerlein - Modelling and Simulation in Materials …, 2019 - iopscience.iop.org
In this work, selecting the equal-molar CoNiRu multi-principal element alloy (MPEA) as a
model material, we study dislocation core structures starting from first principles. We begin …

Characterization of macroscopic tensile strength of polycrystalline metals with two-scale finite element analysis

I Watanabe, K Terada, EA de Souza Neto… - Journal of the Mechanics …, 2008 - Elsevier
The objective of this contribution is to develop an elastic–plastic–damage constitutive model
for crystal grain and to incorporate it with two-scale finite element analyses based on …

A homogenization theory of strain gradient single crystal plasticity and its finite element discretization

D Okumura, Y Higashi, K Sumida, N Ohno - International Journal of …, 2007 - Elsevier
In this study, a homogenization theory based on the Gurtin strain gradient formulation and its
finite element discretization are developed for investigating the size effects on macroscopic …

Application of artificial neural networks in micromechanics for polycrystalline metals

U Ali, W Muhammad, A Brahme, O Skiba… - International Journal of …, 2019 - Elsevier
Abstract Machine learning techniques are widely used to understand and predict data trends
and therefore can provide a huge computational advantage over conventional numerical …