Dislocation-Grain Boundary Interactions by the Quasicontinuum Method
The interactions between edge dislocations and the grain boundary have been studied by using quasicontinuum simulations. With an increase in the shear strain, dislocation pile-up is created and local stress concentration occurs at the head of the pile-up. The relationship between the stress concentration and the number of dislocations in the pile-up is discussed.
N. Ohno and T. Uehara
T. Shimokawa et al., "Dislocation-Grain Boundary Interactions by the Quasicontinuum Method", Key Engineering Materials, Vols. 340-341, pp. 973-978, 2007