About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Defects and Interfaces: Modeling and Experiments
|
Presentation Title |
D-24: 3D Discrete Dislocation Dynamics Simulations of Multiple Spiral Dislocation Sources |
Author(s) |
Luo Li, Tariq Khraishi |
On-Site Speaker (Planned) |
Luo Li |
Abstract Scope |
A spiral dislocation source is a dislocation with one end fixed on the slip plane, while the other end of the spiral dislocation source is at a grain boundary or a free surface. In the current study, 3D Dislocation Discrete Dynamics simulations, which is a simulation method that can emulate the collective motion of dislocations and predict the constitutive behavior of a crystalline material, is used to simulate, and capture the interaction between the spiral dislocation sources. The simulation results show that the flow stress for the computational domain is inversely proportional to the number of spiral dislocation sources. An interesting fan blade formation by the sources is observed. |
Proceedings Inclusion? |
Planned: |
Keywords |
Modeling and Simulation, Mechanical Properties, |