About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
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AI/Data Informatics: Computational Model Development, Verification, Validation, and Uncertainty Quantification
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Presentation Title |
Genetic Programming Derived Stress-rupture Model for Lifetime Estimation of Alloy 617 |
Author(s) |
Md Abir Hossain, Calvin M Stewart |
On-Site Speaker (Planned) |
Md Abir Hossain |
Abstract Scope |
This study aims to explore the capability of human supervised machine learning (ML) to generate high-throughput creep models. For over a century, creep constitutive models have been developed based on empirical knowledge, human intuition, and experimentation. Phenomenological creep models can often be restrictive due to mathematical assumptions. Multigene genetic programming (MGGP); a biologically inspired ML method, is employed to derive predictive, human-interpretable stress-rupture (SR) models. The MGGP algorithm leverages symbolic regression to generate candidate SR model equations and is applied to alloy 617. The best screened SR model is observed to be a function of stress, temperature, and a subset of alloying elements. The model prediction exhibits satisfactory agreement with the creep data and is validated by statistical rationale. The rupture predictions reveal that variations in alloy composition are correlated to the strengthening mechanism observed in alloy 617. |
Proceedings Inclusion? |
Planned: |
Keywords |
Machine Learning, Modeling and Simulation, Other |