About this Abstract |
Meeting |
5th International Congress on 3D Materials Science (3DMS 2021)
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Symposium
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5th International Congress on 3D Materials Science (3DMS 2021)
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Presentation Title |
Statistical Analysis of Crystal Plasticity on Commercially Pure Titanium by Coupling 4D Testing and Finite Element Simulations |
Author(s) |
Clement Ribart, Aldo Marano, Franck N'Guyen, Andrew King, David Ryckelynck, Wolfgang Ludwig, Henry Proudhon |
On-Site Speaker (Planned) |
Clement Ribart |
Abstract Scope |
This talk will present a multimodal experiment on Grade 2 Titanium for the study of polycrystal plasticity. The data set is composed of 3D and 4D in-situ Diffraction Contrast Tomography (DCT) tests conducted at SOLEIL synchrotron. In addition in-situ SEM tests (high resolution SEM mapping and EBSD scans) have been performed on specimens where the microstructure was previously measured by DCT. Digital twins of the specimens are built using the reference 3D microstructure to access the local stress fields by means of crystal plasticity finite element simulations. The volumes studied are of the order of 1 mm cube and each contains several thousands of grains to be representative of the mesoscopic scale. This allows statistical evaluation of slip system activation and lattice curvature extracted from the data set. The method is an important step towards constitutive behaviour identification at the scale of the grain. |
Proceedings Inclusion? |
Definite: Other |