About this Abstract |
Meeting |
TMS Specialty Congress 2024
|
Symposium
|
2nd World Congress on Artificial Intelligence in Materials & Manufacturing (AIM 2024)
|
Presentation Title |
Training Requirements of a Deep Learning Network With Physics-based Regularization Functions Enforcing Stress Equilibrium |
Author(s) |
Ashley Lenau, Dennis Dimmiduk, Stephen Niezgoda |
On-Site Speaker (Planned) |
Stephen Niezgoda |
Abstract Scope |
Incorporating scientific knowledge into deep learning (DL) models is becoming common practice due to the likely increase in accuracy of a materials-based simulations. Altering the loss function or adding a physics-based regularization term to reflect the physics of the material system informs the network about the physical boundaries the simulated material should obey. The training and tuning process of a DL network greatly affects the quality of the model, but how this process differs when using physics-based loss functions or regularization terms is not commonly discussed. In this presentation, several physics-based regularization methods are implemented to enforce stress equilibrium on a network predicting the stress fields of a high elastic contrast composite. Hyperparameters, like learning rate and loss weight, were tuned separately for each method. The amount of time to train each implementation is discussed, as well as the model performance when the training dataset size is reduced. |
Proceedings Inclusion? |
Definite: Other |