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
|
Presentation Title |
Inferring Defect Distributions in Additive Manufacturing - A Stochastic Inverse Approach to Multiscale Direct Numerical Simulations |
Author(s) |
Anh Tran, Philip Eisenlohr, Jay Carroll, Tim Wildey |
On-Site Speaker (Planned) |
Anh Tran |
Abstract Scope |
Materials variability is naturally inherent due to the stochastic nature of microstructures. As a result, in an additive manufacturing context, a constant density or porosity may exhibit an ensemble of stress/strain curves, specifically in the plasticity regime with large deformations. Due to the random placement of defects, such as voids, and the random microstructures with grains sizes and orientations, the behaviors of the material are often stochastic. In this talk, we are mainly interested in the inverse problem, that is, to infer the distribution of porosity or defects given a collection of stress/strain curves, without involving any experimental microstructure characterization. We demonstrate our approach using a multiscale direct numerical simulation with crystal plasticity spectral methods (DAMASK) on an additively manufactured high-throughput tensile dogbone specimen. |
Proceedings Inclusion? |
Planned: |
Keywords |
ICME, |