Dislocation-Grain Boundary Interactions by the Quasicontinuum Method


Article Preview

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.



Key Engineering Materials (Volumes 340-341)

Edited by:

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

Online since:

June 2007




[1] J. W. Wyrzykowski and M. W. Grabski: Philos. Mag. A Vol 53 (1986), p.505.

[2] E.B. Tadmor, M. Ortiz and R. Phillips: Philos. Mag. A Vol. 73 (1996), p.1529.

[3] V.B. Shenoy, R. Miller, E.B. Tadmor, D. Rodney, R. Phillips and M. Ortiz: J. Mech. Phys. Solids Vol. 47 (1999), p.611.

[4] T. Shimokawa, J.J. Mortensen, J. Schiøtz and K.W. Jacobsen: Phys. Rev. B Vol. 69 (2004), p.214104.

[5] Y. Mishin, D. Farkas, M.J. Mehl and D.A. Papaconstantopoulos: Phys. Rev. B Vol. 59 (1999), p.3393.

[6] J.P. Hirth and J. Lothe: Theory of Dislocations: Second edition (Wiley, New York 1968).

[7] H. J´onsson and H.C. Andersen: Phys. Rev. Lett. Vol. 60 (1988), p.2295.