About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
|
Symposium
|
AI/Data Informatics: Computational Model Development, Validation, and Uncertainty Quantification
|
Presentation Title |
Mining Structure-property Linkage in Nanoporous Materials Using an Interpretative Deep Learning Approach |
Author(s) |
Haomin Liu, Niaz Abdolrahim |
On-Site Speaker (Planned) |
Niaz Abdolrahim |
Abstract Scope |
In this study, a 3-D convolution neural network (CNN) is designed and implemented to simulated nanoporous (NP) metallic materials to investigate their structure-property relationship. It is demonstrated that our approach is able to predict the effective stiffness of NP structure with a wide range of microstructures while exhibiting high accuracy and low computational cost. We also developed a unique interpretation method for providing meaningful insights into learning the structure and property linkage of nanoporous material based on our well-trained CNN model. Using this method, it is revealed that the CNN identifies relative density and surface curvature as the two most important features that strongly impact stiffness. While the effect of relative density is already known from previous theoretical models, verifying the predictive ability of the CNN model, the interpretation method also suggests that the anomalous low stiffness could be related to the saddle-shape surface of the NP structure |
Proceedings Inclusion? |
Planned: |