Geometrically necessary dislocations and related kinematic hardening in gradient grained materials: A nonlocal crystal plasticity study
Gradient grained metals whose microstructure is characterized by a spatially graded grain
size distribution show a better strength-ductility combination than their homogeneous …
size distribution show a better strength-ductility combination than their homogeneous …
Shear localization in polycrystalline metal at high-strain rates with dynamic recrystallization: crystal plasticity modeling and texture effect
Shear localization is an important failure mode, or even the dominant mode in metals at high-
strain rates. However, it is a great challenge to accurately predict the occurrence and …
strain rates. However, it is a great challenge to accurately predict the occurrence and …
[HTML][HTML] Direct numerical simulation of shear localization and decomposition reactions in shock-loaded HMX crystal
A numerical model is developed to study the shock wave ignition of octahydro-1, 3, 5, 7-
tetranitro-1, 3, 5, 7-tetrazocine (HMX) crystal. The model accounts for the coupling between …
tetranitro-1, 3, 5, 7-tetrazocine (HMX) crystal. The model accounts for the coupling between …
A dislocation density-based continuum model of the anisotropic shock response of single crystal α-cyclotrimethylene trinitramine
DJ Luscher, FL Addessio, MJ Cawkwell… - Journal of the Mechanics …, 2017 - Elsevier
We have developed a model for the finite deformation thermomechanical response of α-
cyclotrimethylene trinitramine (RDX). Our model accounts for nonlinear thermoelastic lattice …
cyclotrimethylene trinitramine (RDX). Our model accounts for nonlinear thermoelastic lattice …
Dynamic crystal plasticity modeling of single crystal tantalum and validation using Taylor cylinder impact tests
In this work, we extend a dislocation-density based constitutive theory for the dynamic
thermomechanical behavior of crystals to body centered cubic (BCC) tantalum. Strain rate …
thermomechanical behavior of crystals to body centered cubic (BCC) tantalum. Strain rate …
[HTML][HTML] Advancements in and Applications of Crystal Plasticity Modelling of Metallic Materials
V Loukadakis, S Papaefthymiou - Crystals, 2024 - mdpi.com
Integrated Computational Materials Engineering (ICME) is a set of methodologies utilized by
researchers and engineers assisting the study of material behaviour during production …
researchers and engineers assisting the study of material behaviour during production …
Bayesian calibration of a physics-based crystal plasticity and damage model
In this work, we present a model parameter calibration procedure for a physics-based crystal
plasticity model. The calibration process utilizes a powerful statistics-based Bayesian …
plasticity model. The calibration process utilizes a powerful statistics-based Bayesian …
Simulation of shock wave propagation in single crystal and polycrystalline aluminum
A thermoelastic–viscoplastic constitutive model has been developed to model high strain
rate deformation in single crystal metals. The thermoelastic formulation employs a material …
rate deformation in single crystal metals. The thermoelastic formulation employs a material …
Crystal plasticity including a phase-field deformation twinning model for the high-rate deformation of cyclotetramethylene tetranitramine
M Zecevic, MJ Cawkwell, KJ Ramos… - Journal of the Mechanics …, 2022 - Elsevier
A new finite strain thermomechanical model for the high-rate deformation of the β-polymorph
of cyclotetramethylene tetranitramine (β-HMX) has been developed and applied to …
of cyclotetramethylene tetranitramine (β-HMX) has been developed and applied to …
Coupling continuum dislocation transport with crystal plasticity for application to shock loading conditions
We have developed a multi-physics modeling approach that couples continuum dislocation
transport, nonlinear thermoelasticity, crystal plasticity, and consistent internal stress and …
transport, nonlinear thermoelasticity, crystal plasticity, and consistent internal stress and …