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Dislocation impediment by the grain boundaries in polycrystals
Yinguang Piao, Khanh Chau Le
Thermodynamic dislocation theory incorporating dislocation impediment by the grain boundaries is developed to analyze the shear test of polycrystals. With a small set of physics ba…
Thermodynamic dislocation theory: Application to bcc-crystals
Khanh Chau Le, Sa Ly Dang, Hoang Thien Luu +1
This paper presents the thermodynamic dislocation theory containing several modifications over its first version which was originally proposed by Langer, Bouchbinder, and Lookman (…
Two universal laws for plastic flows and the consistent thermodynamic dislocation theory
Khanh Chau Le
This paper verifies two laws for plastic flows of face-centered cubic crystals that deform at constant strain rates and fixed ambient temperatures. The first law relates steady-sta…
Scaling Confirmation of the Thermodynamic Dislocation Theory
J. S. Langer, K. C. Le
We show that the thermodynamic dislocation theory (TDT) predicts a scaling relation between stresses, strain rates, and temperatures for steady-state deformations of crystalline so…
Asymptotically exact theory of fiber-reinforced composite beams
Khanh Chau Le, Tuan Minh Tran
An asymptotic analysis of the energy functional of a fiber-reinforced composite beam with a periodic microstructure in its cross section is performed. From this analysis the asympt…