|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Coupling Experiments and Modeling to Understand Plasticity and Failure
||Using 3D Microstructure Characterization to Study the Mechanics of Polycrystalline Materials
||Henry Proudhon, Wolfgang Ludwig, Jean-Charles Stinville, William C Lenthe, McLean P Echlin, Tresa M Pollock
|On-Site Speaker (Planned)
In the past 10 years, significant efforts were devoted to develop 3D microstructure characterization capabilities in mm sized specimens, including orientation mapping, with micrometer spatial resolution. Serial sectioning carried out inside a SEM (using ion or laser beams) paired with EBSD imaging have unlocked 3D orientation mapping, although at the price of destructing the specimen. Similarly, the increasing popularity and capabilities of X-ray tomography coupled to diffraction to image the bulk of materials in three dimensions brings forward a new way to conduct microstructurally informed mechanical testing. One of the key challenges is therefore to link 3D microstructure characterization tools with computational models to predict engineering properties such as strength or fatigue resistance. Several examples of 3D experimental microstructure based large-scale computations using the crystal plasticity finite element method will be presented and compared with in situ testing measurements. Simultaneous modeling/experimental approaches will be discussed in light of the results.
||Planned: Supplemental Proceedings volume