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Meeting 2018 TMS Annual Meeting & Exhibition
Symposium Advanced Characterization Techniques for Quantifying and Modeling Deformation
Presentation Title A New Numerical Integration Scheme for Fast Fourier Transform-based Crystal Plasticity Models
Author(s) Kaan A. Inal, Jaspreet Nagra, Abhijit Brahme, Ricardo Lebensohn
On-Site Speaker (Planned) Kaan A. Inal
Abstract Scope In this paper, a new full-field numerical framework based on the elasto-viscoplastic (EVP) fast Fourier transform (FFT) formulation developed by Lebensohn et al. (2012) is presented. Accordingly, the full-field solutions of micromechanical fields are computed on a regular, voxelized representative volume element (RVE) in which either a single or multiple grid points represent grains. The Asaro and Needleman (1985) formulation coupled with a semi-explicit, forward gradient time-integration scheme is used to compute local stresses and strains. The proposed model is calibrated using experimental uniaxial tensile test results of aluminum alloy (AA) 5754 sheet and then used to predict texture evolution and stress-strain response for balanced biaxial tension and plane-strain tension along rolling (RD) and transverse (TD) directions. The CPU time required by the proposed model is compared with the original EVP-FFT model and the simulations showed that proposed model is approximately 102 times faster than the original model.
Proceedings Inclusion? Planned: Supplemental Proceedings volume


3D Dislocation Crystallography
4D Hydrogen Embrittlement Behaviour in High Strength Aluminium Alloy
A Micromechanical Study for Twin Nucleation in hcp Metals: Development of Analytical Solution to Study Twin Bands Formation
A New Numerical Integration Scheme for Fast Fourier Transform-based Crystal Plasticity Models
A Study of Anisotropy in Tensile and Cyclic Deformation Behavior of Hexagonal Close Packed Titanium Using Electron Backscatter Diffraction and Elastoplastic Self-consistent Simulations
Advances in Information Extraction from Near-field High Energy Diffraction Microscopy Data Sets
An Application of X-Ray Micro Computer Tomography to Understand Material Flow during Friction Stir Channelling Process
Analysis of Dislocation Slip Across Boundaries in Tantalum Using ECCI and CC-EBSD
Analyzing Subsurface Dislocation Content of Ti-5Al-2.5Sn Alloy Using Micro-Laue Diffraction Based Streak Anlaysis and Transmission Electron Microscopy
Applications of Low(er) Voltage EBSD to Heavily Deformed Material Systems
Atomic Scale Modeling and Experimental Observations of Deformation Mechanisms in Ni Base Superalloys
Characterization of Dislocation/GB Interactions via HR-EBSD and Machine Learning
Characterization of the Factors Influencing Retained Austenite Transformation in Q&P Steels via EBSD Analysis
Combining Experiments and Models via a Bayesian Network Approach to Predict Short Fatigue Crack Growth
Comparison of Strain Maps from Digital Image Correlation and Modeling of Polycrystalline Metals
Correlating Structural Heterogeneity to Deformation of Metallic Glasses Using Fluctuation Microscopy and Mesoscale Simulation
Delayed Cracking and Earing Phenomena in Deep-drawn Stainless Steel Alloys: Interplay among Microstructure, Texture, Transformation Kinetics, Residual Stress, and Load Partitioning
Detection of the Onset of Plasticity in Micro-crystals: In-situ Deformation of InSb Micro-pillars under Synchrotron Coherent X-ray Nanobeam
Dominant Axes of Orientation Distributions and the Peculiar Case of [111] Grains in Tension
Effect of Heterogeneous Microstructure on Deformation Twinning in HCP Titanium
Effect of Local Stress on Fault Formation and Propagation within HCP Materials
Electron Microscopy Image Simulation Using Atomistic Simulation Data
Evolution of Stacking Faults during Thermomechanical Processing of Biomedical Co–Cr–Mo Alloys Studied by X-ray Diffraction Line-profile Analysis
Experimental and Crystal Plasticity Based Characterization of Heterogeneous Deformation in Hexagonal Titanium
High Resolution Strain Measurements in a Polycrystalline Superalloy during Plastic Deformation: Slip Band Discontinuity Analysis
I-10: Toward Development of an Optimum Biaxial Tensile Test Specimen Design
I-1: 4D Imaging of Deformation in Polymeric Foams Using X-ray Synchrotron Tomography
I-2: Compression Testing of Single Crystals of β-Si3N4 on Micron Meter Scale by Means of FIB Machining Combined with EBSD Orientation Mapping
I-3: Correlative Microscopy in Materials Science
I-4: Development of a Constitutive Model for Plastic Deformation in Single Crystal Niobium
I-5: Distribution of Cr Atoms in a Strained and Strain-relaxed Fe89.15Cr10.75 Alloy: Mössbauer Effect Study
I-7: Influence of Strain Rate and Microstructure on the Substructure Evolution and Properties of Ti-407
I-8: Investigating Internal Lattice Strains in DMLS IN718 Material in the as Built and Post-processed Conditions
I-9: Time-dependent Characterization at the Mesoscale: The MaRIE Project at Los Alamos National Laboratory
Impact of Microstructural Features on the Grain-orientation Dependent Strain Hardening and Softening Mechanisms in Al-Cu Alloys
In-situ Characterization of Plasticity Mechanisms along Complex Stain Paths
In-situ EBSD Analysis and Crystal Plasticity FE Simulations in a CP Titanium
In-situ Experiments to Capture the Rapid Evolution of Microstructure during Phase Transformation of Titanium Under Dynamic Loading
In-situ Monitoring of Cyclic Deformation by High Resolution Reciprocal Space Mapping
In-situ Neutron Diffraction during Biaxial Strain Path Changes
In-situ Neutron Diffraction of Pure Mg during ECAE Processing
In-TEM Observation on Twinning in Nano-sized BCC Crystal
In Situ Electron Microscopy Investigation on Plastic Deformation in a Metastable Beta Titanium Alloy
In Situ TEM Study of Dislocation – {10-12} Twin Boundary Interaction in Mg
Intermittent Plasticity Associated with Collective Motion of Dislocation in bcc Alloys
Investigating Surface Deformation and 3D Microstructure in Polycrystalline Metals
Measuring Intra-grain Orientation Gradient and Elastic Strain Field by Near-field High Energy X-ray Diffraction Microscopy
Mechanical Fields due to Double Twinning in Magnesium Alloy AZ31 as Revealed by Explicit Modeling of Twin Lamellae Using a Crystal Plasticity Finite Element Model
Micro-compression Testing of Mg-Nb Multilayered Nano-composites for Ultra-high Strength, Formability and Ductility
Microstructural Evolution of 316L Stainless Steel Subjected to Shear
Microstructural Evolution of Ti-7Al Under Cyclic Loading
Microstructure and Deformation Mechanisms in Ti-7Al
Modern Diffraction Methods for the Investigation of Thermo-mechanical Processes
Novel 3D Crystallite-scale Characterization of Deformation during Cyclic Loading of Low Crystal-symmetry Phases
Plastic Deformation Behaviour of a γ-TiAl Alloy in High Cycle Fatigue at up to 700 °C by Nano-scale Digital Image Correlation of a Remodelled Au Speckle Pattern
Quantifying Microstructural Deformation in Cold Sprayed Aluminum-copper Alloy Coatings
Representative Volume Generation from 2D EBSD Maps and their Implementation in FFT Based Crystal Plasticity Models
Role of Grain Boundary Sliding in Deformation of Polycrystalline Materials
Simulations of Bi-crystal Nanoindentation and Polycrystalline Uniaxial Tensile Deformation with a Grain Boundary-aware Crystal Plasticity Model
Slip System Kinematic Hardening-based Simulation of Reverse Plasticity in Nanoindentation of β-tin
Statistical Model Based on Large Field-of-view Images Predicts Microstructural Damage-sites
Strain Localisation Behaviour in Ti834 Subjected to Cold Creep Testing
TEM 3D Visualization Using Two Micrographs
Tensile Behavior of Individual Grains in Austenitic Steel Studied by 3DXRD and Crystal Plasticity Simulations
Three-dimensional X-ray Diffraction Imaging of Dislocations in Polycrystalline Metals Under Tensile Loading
Time Dependent Plasticity and Cold Dwell Fatigue in Ti-alloys
Twinning-detwinning Behavior during the Low-cycle Fatigue Testing of Pure Magnesium Using High Energy X-Ray Diffraction
Understanding Effect of Texture and Topology on Stress Hotspots Using Machine Learning
Understanding the Role of Interfaces on Fully Lamellar TiAl Alloys through Micromechanical Testing
Using Correlative HRDIC, EBSD and ECCI to Answer Questions of Microstructure-specific Plasticity
Using Crystal Plasticity to Predict Local Deformation during Reverse Loading of an Aerospace Alloy
Using EBSD to Quantify Defect Structures in Deformed IF Steels

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