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Meeting 2026 TMS Annual Meeting & Exhibition
Symposium Verification, Calibration, and Validation Approaches in Modeling the Mechanical Performance of Metallic Materials
Presentation Title Crystal Plasticity Informed Hill's Constitutive Model for Modeling Mechanical Response and Texture Evolution of Polycrystalline Metals
Author(s) Md Zahidul Sarkar, Marko Knezevic
On-Site Speaker (Planned) Md Zahidul Sarkar
Abstract Scope This work presents a crystal plasticity-informed Hill’s constitutive model for efficiently simulating mechanical behavior and texture evolution in polycrystalline metals. The framework couples a Hill yield criterion-based plasticity model with a texture evolution model derived from a recently developed computationally efficient Spectral Crystal Plasticity (SCP) approach. The combined model is implemented in Abaqus via a user material subroutine (UMAT) and validated against experimental results. The validation was performed through cylinder compression simulations of Haynes 25 alloy, demonstrating the model’s capability to predict texture evolution. Additionally, the model reasonably accurately reproduced the geometrical deformation of Cu single crystal cylinders in compression. Finally, the model predicted cup height and texture evolution during deep drawing of an aluminum alloy 6016. The simulation results and computational efficiency gains will be presented and discussed.
Proceedings Inclusion? Planned:
Keywords Computational Materials Science & Engineering, Modeling and Simulation, Characterization

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