About this Abstract |
Meeting |
5th International Congress on 3D Materials Science (3DMS 2021)
|
Symposium
|
5th International Congress on 3D Materials Science (3DMS 2021)
|
Presentation Title |
Equations for Grain Boundary Motion in Finite-element Simulations |
Author(s) |
Erdem Eren, Jeremy Kyle Mason |
On-Site Speaker (Planned) |
Erdem Eren |
Abstract Scope |
Simulating microstructure evolution on a finite element mesh is challenging; some existing formulations do not allow for anisotropic grain boundary properties, have unphysical anisotropy from the underlying numerical model, or allow only a restricted set of topological events that bias the grain boundary network evolution. Our group has been developing a FEM simulation that (1) uses a volumetric mesh to allow the inclusion of arbitrary material physics, (2) significantly expands the set of topological events to allow for general grain boundary network dynamics, and (3) proposes an energy dissipation criterion to identify the physically most plausible of these events. The performance of three proposed equations of motion for grain boundaries is evaluated and compared to known analytical results. The resulting code is expected to improve our ability to use recently-available experimental observations of three-dimensional microstructure evolution to develop predictive simulations. |
Proceedings Inclusion? |
Definite: Other |