| Autor: |
Knyazev, Nikita A., Volegov, Pavel S. |
| Předmět: |
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| Zdroj: |
AIP Conference Proceedings; 2024, Vol. 3183 Issue 1, p1-6, 6p |
| Abstrakt: |
The edge dislocation motion under uniaxial compression in alpha-titanium single crystal was simulated using the dislocation dynamics approach. At each time step of the algorithm, non-uniform fields of displacements, stresses and strains caused by the internal stresses of dislocations in the crystal and externally applied loads were obtained. The calculation of the image fields necessary for a correct determination of the stress-strain state (SSS) parameters at the single crystal boundary was carried out by solving the boundary value problem using the finite element method (FEM). A separate numerical simulation was performed for the particular case of successive motion of edge dislocations with the further dislocation pile-up formation near the grain boundary. The trajectories of dislocation motion in the pile-up were reproduced, and a comparison of numerical and analytical solution for the equilibrium positions of dislocations in the pile-up was presented. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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