About this Abstract |
Meeting |
2022 TMS Annual Meeting & Exhibition
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Symposium
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Seeing is Believing -- Understanding Environmental Degradation and Mechanical Response Using Advanced Characterization Techniques: An SMD Symposium in Honor of Ian M. Robertson
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Presentation Title |
Some Challenges in Length and Time Scaling for Modeling Dislocations and Interface Reactions |
Author(s) |
David L. McDowell |
On-Site Speaker (Planned) |
David L. McDowell |
Abstract Scope |
We consider multiple crystalline plasticity model constructs that address evolution of dislocation and of dislocation-obstacle or –interface interactions over a broad range of length and time scales, from atomistic modeling and coarse-graining strategies through discrete dislocation theory to fields of nanoscale obstacles. The predictive character of each construct is considered, along with the notion of uncertainty of modeling phenomena at various scales and its role in combining atomistic modeling and experimental information to inform mesoscopic models. The role of dislocation substructure is considered. Gaps and future challenges are summarized. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Thin Films and Interfaces, Modeling and Simulation |