|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Algorithm Development in Materials Science and Engineering
||Algorithmic Extensions to Phase Field Dislocation Dynamics (PFDD) for Fcc and Bcc metals
||Abigail Hunter, Enrique Martinez Saez, Irene Beyerlein
|On-Site Speaker (Planned)
The purpose of this research is to investigate nanoscale deformation processes through the development and application of a 3D phase field dislocation dynamics (PFDD) model. The phase field approach is centered on minimization of the total system energy, which is comprised of several contributions that can depend on the problem of interest. Most common are elastic contributions that take into consideration dislocation-dislocation interactions, interactions with an applied stress, and a generalized stacking fault energy term that is used to model extended stacking faults and partial dislocations and can be directly informed by density functional theory (DFT). This talk will focus on recent work aimed to extend the PFDD algorithm to better account for the cubic crystallography in metals. The impact of results for face-centered cubic (fcc) metals will be discussed, in addition to application to body-centered cubic (bcc) metals.
||Planned: Supplemental Proceedings volume