About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
Microstructure-Sensitive Design and Advanced Characterization: An MPMD/SMD Symposium Honoring David T. Fullwood
|
| Presentation Title |
Validating Grain-Scale Plastic Deformation and Fracture Using Experimental Characterization and CPFEM |
| Author(s) |
Hojun Lim, Kaitlynn Fitzgerald, Tim Ruggles, William Gilliland, Philip Noell, Jay Carroll |
| On-Site Speaker (Planned) |
Hojun Lim |
| Abstract Scope |
Understanding the plastic deformation and fracture behavior of polycrystalline metals is essential for optimizing material performance and advancing the design of engineering components. In this presentation, we discuss various experimental techniques—including EBSD, DIC, and advanced 3D imaging methods such as DCT and XCT—to characterize plastic deformation and fracture across single-, multi-, and polycrystalline specimens. These techniques provide detailed insight into how microstructural features, such as grain orientations and grain boundaries, influence deformation mechanisms and failure processes. To complement and extend our experimental observations, we performed CP-FEM simulations that directly incorporate the measured microstructural data. This integrated approach allows for a quantitative comparison between experimental results and model predictions, providing a rigorous validation of the CP-FEM framework at the grain scale. We also discuss the successes and limitations encountered in predicting grain-scale deformation behavior using CP-FEM, highlighting how constitutive model parameters, boundary conditions, and microstructural complexity affect the accuracy of simulations. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Characterization |