About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
|
Symposium
|
Algorithms Development in Materials Science and Engineering
|
Presentation Title |
Comparison of crystal plasticity model predictions with DIC measured strain fields on nickel clones |
Author(s) |
Srinivas Chakrapani Yamujala, Surya R. Kalidindi, Hojun Lim, Kaitlynn M. Fitzgerald, Timothy Ruggles, William Gilliland, Jay Carroll |
On-Site Speaker (Planned) |
Srinivas Chakrapani Yamujala |
Abstract Scope |
Crystal plasticity techniques have been used extensively to assess the micromechanical response of metallic microstructures. However, the usability and accuracy of these models, with respect to specific materials, microstructures, and loading conditions, remain areas of active exploration. This study aims to compare and assess a selected set of crystal plasticity models with variations in slip-hardening descriptions. The predicted strain fields from the models are compared with corresponding Digital Image Correlation (DIC) measured experimental strain fields on nickel microstructure clones. The model with the best slip-hardening description, capable of accurately capturing the formation and evolution of strain bands, will be determined using the above analysis. The evaluations will be performed using a recently developed Bayesian framework to calibrate each model using available experimental observations and evaluate each model's relative probability of fully explaining the experimental observations. Insights from these comparisons will be utilized to develop improved crystal plasticity theories. |
Proceedings Inclusion? |
Planned: |
Keywords |
Mechanical Properties, Computational Materials Science & Engineering, Machine Learning |