Conference Tools for 2025 TMS Annual Meeting & Exhibition

Help

About this Abstract
Meeting	2025 TMS Annual Meeting & Exhibition
Symposium	Verification, Calibration, and Validation Approaches in Modeling the Mechanical Performance of Metallic Materials
Presentation Title	Strain-Gradient Crystal Plasticity Finite Element Modeling of Phenomena Pertaining to the Sequential Strain Path Changes in AA6016-T4
Author(s)	Sajjad Izadpanah, Sarah Sanderson, Asher Webb, Michael Miles, David Fullwood, Marko Knezevic
On-Site Speaker (Planned)	Sajjad Izadpanah
Abstract Scope	Metal forming processes are characterized by strain path changes inducing strain gradients and underlying backstress fields in the material undergoing forming. This study seeks to build upon current state of the art by quantifying geometrically necessary dislocations (GNDs) at the slip-system level in the model using the local strain gradients. The model is exercised by replicating experiments undertaken on AA6016-T4, which are performed under multi-step strain paths: plain strain followed by simple tension, biaxial tension followed by simple tension, and simple tension followed by simple tension. Both GND and statistically stored dislocations (SSDs) are quantified at various stages using both high resolution electron backscatter diffraction (HREBSD) and X-ray diffraction (XRD). Comparisons of observed and simulated GND populations reveal that buildup of GNDs is dominated by precipitate distribution rather than by grain boundary (GB) networks; such precipitates are then included in the model to improve the predictions.
Proceedings Inclusion?	Planned:
Keywords	Modeling and Simulation, Computational Materials Science & Engineering, Shaping and Forming

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

A Constitutive Framework for Modeling Dynamic Recrystallization in Pure Copper

Advanced Calibration of the GTN Damage Model for Aluminum Alloy AA6111 via Bayesian Inference and Digital Image Correlation Techniques

An Open-Source Framework for Data Augmentation and Emulation: Application to Process Optimization in AM

Bayesian Calibration and Validation of a Physics-Based Crystal Plasticity and Damage Model for Shock Compression and Spall

Computational Materials for Qualification and Certification Steering Group and Community Vision Roadmap

Digital Twins to Accelerate AM Qualification: Defining Challenge Problems to Validate Model Performance

Establishing Temperature-Based Relationships for Mechanical Properties and Crystal Plasticity Parameters of Additively Manufactured Haynes-214 Alloy

Experiment and Crystal Plasticity Model-Based Investigation of Surface Roughness Influence in the Fatigue Life of Additive Manufactured Nickel-Supperalloys

Experiments and Methods to Calibrate and Validate Defect-Sensitive Fatigue Models

Explicit Finite Element Model of Composite Metal Foam’s Mechanical Response During Quasi-Static and Dynamic Compression

Improved Representation of Grain-Level Microstructures to Support Advanced In-Situ Mechanical Testing

Micromechanical Model Verification of Additively Manufactured Inconel 625 Informed by In Situ High-Energy X-Ray Diffraction

Microstructure Dependence of Spall Failure in Mg-Al Alloys at Extreme Strain Rates

Non-Uniqueness in Crystal Plasticity Fitting Parameters: Effects on Intragranular Mechanical Behavior

Physics-Informed Neural Networks with LuGre Model for Friction Force Analysis in Tribological Systems

Predicting Mechanical Properties of Ti-6Al-4V Alloy Using a Physics-Informed Neural Network (PINN) for Crystal Plasticity Modeling

Predicting the Variability in Performance of Zircaloy in Nuclear Reactors

Probabilistic Global-Local Calibration of Crystal Plasticity Parameters for Additively Manufactured Metals Using Synthetic Data

Quantifying Error in Machine Learning Predictions of Macroscopic Yield Surfaces of Polycrystalline Materials

Quantifying Uncertainties Using Crystal Plasticity Modeling of Microstructural Clones

Strain-Gradient Crystal Plasticity Finite Element Modeling of Phenomena Pertaining to the Sequential Strain Path Changes in AA6016-T4

Substructure-Sensitive Crystal Plasticity: A Consistent Approach Across Materials, Loading Conditions and Temperatures

Synchrotron-Based Experiments and Microstructure-Sensitive Modeling

Uncertainty-Aware Validation in Modeling of Metal Plasticity: Beyond Mean Squared Error

Uncertainty Quantification of Crystal Plasticity Parameters Using ExaConstit

Uncertainty Quantified Parametrically Upscaled Constitutive Models for Fatigue Nucleation in Polycrystalline Metallic Materials

Questions about ProgramMaster? Contact programming@programmaster.org