About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Advanced Characterization Techniques for Quantifying and Modeling Deformation
|
Presentation Title |
A workflow to create digital twins to analyze the plastic deformation of polycrystals: application to Ti |
Author(s) |
Eugenia Nieto-Valeiras, Javier Llorca |
On-Site Speaker (Planned) |
Javier Llorca |
Abstract Scope |
A workflow to create digital twins of polycrystals has been developed to understand the deformation mechanisms in Ti. The 3D microstructural information obtained by means of laboratory-based diffraction contrast tomography was used to built a digital twin of the microstructure using Voronio tesselations. The mechanical behavior of the digital twin was obtained by means of finite element simulations. The behavior of each crystal followed a dislocation-based crystal plasticity model in which slip transfer across the grain boundaries was allowed between well-aligned slip systems while slip blocking ocurred if the slip systems were not well aligned. The simulated mechanical response was compared to experimental results obtained through high-resolution digital image correlation at various strain levels, which provided detailed information of the heterogeneous strain distribution in the polycrystal. The methodology demonstrates the potential of advanced characterization techniques and simulation tools to enhance the understanding of deformation mechanisms in polycrystals. |
Proceedings Inclusion? |
Planned: |
Keywords |
Titanium, Computational Materials Science & Engineering, Mechanical Properties |