About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
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Symposium
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Mechanical Response of Materials Investigated through Novel In-situ Experiments and Modeling
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Presentation Title |
Crystal Plasticity Modeling of Microstructure Clones |
Author(s) |
Hojun Lim, Kaitlynn Fitzgerald, Nicole Aragon, Tim Ruggles, William Gilliland, Jay Carroll |
On-Site Speaker (Planned) |
Hojun Lim |
Abstract Scope |
Crystal plasticity finite element (CP-FE) models are now widely used to investigate grain-scale deformation of crystalline materials. These models are typically validated with experimental measurements, but it is difficult to quantitatively compare regions of interest using multiple experimental techniques at different length scales. We compare CP-FE predictions of local and global mechanical responses to “Microstructure Clones” data, multiple experimental data from identical quasi-2D crystal specimens. These multi-crystal specimens have nearly identical grain morphologies, grain orientations, grain boundary characters, and similar dislocation arrangements. Such specimens enable multiple in-situ and ex-situ experiments on nominally identical samples while locking down several variables and explore the impact of a single variable in a more scientifically rigorous way. This procedure provides an objective and quantitative methodology to evaluate the model-experiment agreement and allows for testing of various model parameters to improve the CP-FE model. |
Proceedings Inclusion? |
Planned: |
Keywords |
Computational Materials Science & Engineering, Modeling and Simulation, Mechanical Properties |