Document Type
Article
Publication Date
2018
Abstract
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.
Recommended Citation
Song, Y., & Voyiadjis, G. Z. (2018). A two-dimensional finite element model of the grain boundary based on thermo-mechanical strain gradient plasticity. Journal of Theoretical and Applied Mechanics, 56(2), 377-391–391. https://doi.org/10.15632/jtam-pl.56.2.377
First Page
377
Last Page
391
Publication Title
Journal of Theoretical and Applied Mechanics
DOI
10.15632/jtam-pl.56.2.377
Comments
Original published version available at https://doi.org/10.15632/jtam-pl.56.2.377