- Tytuł:
- A two-dimensional finite element model of the grain boundary based on thermo-mechanical strain gradient plasticity
- Autorzy:
-
Song, Y.
Voyiadjis, G. Z. - Powiązania:
- https://bibliotekanauki.pl/articles/279340.pdf
- Data publikacji:
- 2018
- Wydawca:
- Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
- Tematy:
-
strain gradient plasticity
grain boundary
energetic
dissipative
2D FEM - Opis:
- In this work, a two-dimensional finite element model for the grain boundary flow rule is developed based on the thermo-mechanical gradient-enhanced plasticity theory. The proposed model is temperature-dependent. A special attention is given to physical and micromechanical nature of dislocation interactions in combination with thermal activation on stored and dissipated energy. Thermodynamic conjugate microforces are decomposed into energetic and dissipative components. Correspondingly, two different grain boundary material length scales are present in the proposed model. Finally, numerical examples are solved in order to explore characteristics of the proposed grain boundary flow rule.
- Źródło:
-
Journal of Theoretical and Applied Mechanics; 2018, 56, 2; 377-391
1429-2955 - Pojawia się w:
- Journal of Theoretical and Applied Mechanics
- Dostawca treści:
- Biblioteka Nauki
Artykuł