About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Bridging Scale Gaps in Multiscale Materials Modeling in the Age of Artificial Intelligence
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Presentation Title |
Simulation-Informed Models for Amorphous Metal Mechanical Property Prediction |
Author(s) |
Michael L. Falk, Bin Xu, Zhao Wu, Jiayin Lu, Michael Shields, Chris Rycroft, Franz Bamer |
On-Site Speaker (Planned) |
Michael L. Falk |
Abstract Scope |
To enable design of additively manufactured amorphous metal parts with desired mechanical properties we are pursuing simulation-informed modeling as an integral component of a simultaneous design approach. Through the interrogation of an 3D atomistic stochastic volume element of a binary glass, we harvest simulation data that quantifies plastic constitutive response. The resulting data quantifies the stress drops characteristic of metallic glass mechanical response in terms of state variables related to the stress and the structural state of the glass. This data informs a stochastic finite state automata model that can reproduce aspects of the mechanical response and the associated evolution of the material’s structural state. This serves as a lower-scale constitutive model for a continuum model capable of achieving predictions of mechanical response on significantly larger length scales. Validation is undertaken in comparison with large scale atomistic simulations. This work is supported by NSF under Grant Nos. DMR-2323718/DMR-2323719/DMR-2323720. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Computational Materials Science & Engineering, Mechanical Properties |