About this Abstract |
Meeting |
2023 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 |
Numerical Modeling and Advanced Characterization Techniques to Study the Influence of Process-inherited Local Deformation on In-service Behavior of an Inconel 718 |
Author(s) |
Julien Genee, Sylvain Vallot, Damien Texier, Denis Delagnes |
On-Site Speaker (Planned) |
Sylvain Vallot |
Abstract Scope |
This work’s long-term objective is to assess the continuity of material deformation at the grain- and mesoscopic scale from processing to subsequent mechanical loading using crystal plasticity strain gradient models. To that end, advanced experimental characterization techniques are deployed on different pre-deformed microstructures of an Inconel 718. They include advanced digital image correlation (HR-DIC) and high angular resolution orientation (HAR-EBSD) imaging, in order to provide lattice rotations, dislocation substructures and slip events necessary to instantiate simulation volumes. A numerical non-local crystal plasticity model has been developed, and implemented using FFT spectral method, to take into account initial deformation gradients and to describe their evolution under different loading conditions. Advanced experiment/simulation dialogue is expected to prove the ability of the model to predict both localisation of plastic strain and overall material behavior, as well as to predict the influence of pre-deformation history on subsequent microstructure evolution. |
Proceedings Inclusion? |
Planned: |
Keywords |
Characterization, Computational Materials Science & Engineering, Modeling and Simulation |