About this Abstract |
| Meeting |
2026 TMS Annual Meeting & Exhibition
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| Symposium
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Microstructure-Sensitive Modeling Across Length Scales: An MPMD/SMD Symposium in Honor of David L. McDowell
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| Presentation Title |
State Variable Modeling--Inspired Experiment Design |
| Author(s) |
Matthew P. Miller, Dalton Shadle, Tim Long, Kelly Nygren |
| On-Site Speaker (Planned) |
Matthew P. Miller |
| Abstract Scope |
A hallmark of Professor McDowell’s research has been the creation of unique mechanical tests and structural interrogation experiments motivated by characterizing internal state variable models. To explore and understand the multiscale nature of plasticity, both the models and the experiments evolved significantly over the span of Dave’s career. The current generation of high energy synchrotron x-ray diffraction capabilities, coupled with high speed, high resolution area detectors and high fidelity in situ loading capabilities have produced experimental datasets that can be used to understand plasticity and describe it with models at the macroscale of a polycrystalline specimen and also within every deforming crystal. This talk describes McDowell-motivated x-ray diffraction experiments on polycrystalline samples employing monotonic and cyclic loading that define a new class of state variables such as the DSGODs, the discrete single grain orientation distributions. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Mechanical Properties, Characterization, Modeling and Simulation |