About this Abstract |
Meeting |
2025 TMS Annual Meeting & Exhibition
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Symposium
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Verification, Calibration, and Validation Approaches in Modeling the Mechanical Performance of Metallic Materials
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Presentation Title |
Micromechanical Model Verification of Additively Manufactured Inconel 625 Informed by In Situ High-Energy X-Ray Diffraction |
Author(s) |
Reilly Knox, Robert Carson, Matthew Rolchigo, Katherine Shanks, Jim Belak, Darren C. Pagan |
On-Site Speaker (Planned) |
Darren C. Pagan |
Abstract Scope |
Macroscopic stress-strain responses can often be captured by a non-unique set of micromechanical material parameters and microstructure instantiations. As a result, confidence in full-field micromechanical results, necessary for predicting properties such as strength, ductility, and fatigue-life, is reduced. One means to address this issue is to use micromechanical experimental data, such as lattice strain data collected synchrotron X-ray sources. Here we present lattice strain data collected at the Cornell High Energy Synchrotron Source during in situ compression testing of additively manufactured (AM) Inconel 625. This data is used to verify the role of microstructure in micromechanical response predictions from ExaConstit, a high-performance crystal plasticity finite element method code developed as part of the DOE ExaAM project for property prediction of metal AM components. Model instantiation with accurate texture and grain morphology is shown to be critical for micromechanical prediction accuracy. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Modeling and Simulation, Characterization |