About this Abstract |
Meeting |
5th International Congress on 3D Materials Science (3DMS 2021)
|
Symposium
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5th International Congress on 3D Materials Science (3DMS 2021)
|
Presentation Title |
X-ray Tomography and 3D X-ray Diffraction for Quantifying Particle Rearrangements in Granular Materials |
Author(s) |
Ryan C. Hurley, Chongpu Zhai, Nahuel Albayrak, Jonas Engqvist, Stephen Hall, Eric Herbold |
On-Site Speaker (Planned) |
Ryan C. Hurley |
Abstract Scope |
The behavior of granular materials undergoing macroscopic deformation is characterized by local particle rearrangements and other deformation mechanisms, including fracture. Recent advances in X-ray computed tomography (XRCT) and 3D X-ray diffraction (3DXRD) at synchrotron facilities provides a unique approach for quantifying the details of these deformation mechanisms. Previously, access to the type of particle-scale detail that XRCT and 3DXRD can provide in 3D was restricted to photoelasticity in 2D or numerical simulations. Here, we will discuss recent experiments performed on granular materials that combined XRCT and 3DXRD to examine deformation mechanisms occurring during uniaxial and triaxial compression of granular materials. We will focus on deformation mechanisms including local particle strains, non-affine motion, and rotations. We will discuss the application of machine learning to identify and predict the location of such local deformation mechanisms from our X-ray measurements. |
Proceedings Inclusion? |
Definite: Other |