About this Abstract |
| Meeting |
2027 TMS Annual Meeting & Exhibition
|
| Symposium
|
AI/ML/Data Informatics for Materials Discovery: Bridging Experiment, Theory, and Modeling
|
| Presentation Title |
Uncertainty-Guided Active Learning for Autonomous Spall Strength Experimentation |
| Author(s) |
Ali K. Shargh, Piyush Wanchoo, Ashwini Gupta, Lori Graham-Brady, KT Ramesh, Christopher Stiles, Jaafar El-Awady |
| On-Site Speaker (Planned) |
Ali K. Shargh |
| Abstract Scope |
Spallation is a dynamic failure process that limits material performance under extreme loading. Developing materials with improved spall resistance is critical for defense, aerospace, energy, and manufacturing applications, yet spall experiments are destructive, expensive, and difficult to scale across broad composition and processing spaces. We present a probabilistic machine learning framework for predicting spall strength using Gaussian Process Regression trained on a curated database of approximately 300 literature-reported spall experiments. The model employs nine physically motivated descriptors to predict spall strength with associated uncertainty estimates. These uncertainties guide active learning to identify the most informative experiments while minimizing experimental effort. Integrated with the Artificial Intelligence for Materials Design Laboratory (AIMD-L) at Johns Hopkins University, the framework enables AI-driven closed-loop experiment selection. Demonstrated on multiple alloy systems, including Ti- and Al-based alloys, the approach illustrates how uncertainty-aware machine learning can accelerate data-efficient materials discovery for dynamic loading applications. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Machine Learning, Mechanical Properties, Other |