Incorporating point defect generation due to jog formation into the vector density-based continuum dislocation dynamics approach

no code implementations • 8 Feb 2021 • Peng Lin, Vignesh Vivekanandan, Benjamin Anglin, Clint Geller, Anter El-Azab

The results also show that a higher hardening rate and a higher dislocation density are obtained when the point defect generation mechanism is coupled to dislocation dynamics.

Materials Science

On the computational solution of vector-density based continuum dislocation dynamics models: a comparison of two plastic distortion and stress update algorithms

no code implementations • 8 Feb 2021 • Peng Lin, Vignesh Vivekanandan, Kyle Starkey, Benjamin Anglin, Clint Geller, Anter El-Azab

The coupling between these two sets of equations is such that dislocation transport gives rise to the evolution of plastic distortion (strain), while the evolution of the latter fixes the stress from which the dislocation velocity field is found via a mobility law.

Materials Science