Skip to main content Accessibility help
×
×
Home

Simulation of Dislocation Dynamics in the Continuum Limit

  • K. W. Schwarz (a1)

Abstract

Peach-Koehler theory is implemented to simulate the motion of three-dimensionally interacting dislocations, located on various glide planes and having any allowed Burgers vector. The self-interaction is regularized by a modified Brown procedure, which remains stable and loses accuracy in a well-controlled manner as atomic dimensions are approached. The method is illustrated by applying it to several problems involving interacting dislocations in an fcc slip system. The strong interaction of two dislocations on intersecting glide planes is investigated with a view towards developing a set of rules to describe the outcome of such interactions. The effect of Frank-Read sources in relaxing a strained layer are illustrated, both for sources on parallel and on intersecting glide planes.

Copyright

References

Hide All
[1] Kubin, L.P., Canova, G., Condat, M., DeVincre, B., Pontikis, V., and Brdchet, Y., Solid State Phenomena 23–24, 455 (1992).
[2] DeVincre, B. and Kubin, L.P., Model. Simul. Mater. Sci. Eng. 2, 559 (1994).
[3] Kubin, L.P., DeVincre, B., Canova, G., and Bréchet, Y., Key Engineering Materials 103, 217 (1995).
[4] Raabe, D., Z. Metallkd. 87, 493 (1996).
[5] Ghoniem, N.M. and Bacaloni, M., Eng. Rept. UCLA/MATMOD-97-01, Dept. of Mech. and Aerospace Eng., UCLA, Los Angeles, CA (1997).
[6] Tang, M., Kubin, L.P., and Canova, G.R., submitted to Acta Materialia.
[7] Zbib, H.M., Rhee, M., and Hirth, J.P., Int. J. Mech. Sci. 40, 113 (1998).
[8] Freund, L.B. and Kukta, R. (private communication).
[9] Schwarz, K.W. and Tersoff, J., Appl. Phys. Lett. 69, 1220 (1996).
[10] Schwarz, K.W., Phys. Rev. Lett. 78, 4785 (1997).
[11] Schwarz, K.W. and LeGoues, F.K., Phys. Rev. Lett. 79, 1877 (1997).
[12] Schwarz, K.W., J. Appl. Phys. (in press).
[13] Peach, M.O. and Koehler, J.S., Phys. Rev. 80, 436 (1950).
[14] Hirth, J.P. and Lothe, J., Theory of Dislocations, 2nd Ed. (Wiley, New York, 1982).
[15] Brown, L.M., Philos. Mag. 10, 441 (1964)
[16] Gosling, T.J. and Willis, J.R., J. Mech. Phys. Solids 42, 1199 (1994).
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed