| Author | : Zhe Leng |
| File Size | : 48,5 Mb |
| Publisher | : Unknown |
| Language | : English |
| Release Date | : 09 May 2024 |
| ISBN | : OCLC:910938777 |
| Pages | : null pages |
Texture Informed Crystal Plasticity Finite Element Modeling of Polycrystalline Material Deformation by Zhe Leng Book PDF Summary
The interaction between the dislocation and the grain boundaries is also incorporated in the model. For the near grain boundary regions, particular consideration and finite element formula is applied to account for the additional activation energy term as well as the geometric compatibility of the grain boundary during dislocation penetration events, both of the energy term and the geometric barrier depend on the grain boundary character. The formulations applied here provide a reasonable methodology to understand how the interactions between dislocation and grain boundary affect the overall mechanical behavior and the microstructure, and quantitative comparisons of predicted geometrically necessary dislocation distributions with the those determined experimentally indicates a reasonable agreement, further analysis also indicates that stress concentration, as well as the dislocation patterning, depends highly on the grain boundary characters.