MOLECULAR-DYNAMICS SIMULATIONS OF DFZ

Citation
Gh. Zhou et al., MOLECULAR-DYNAMICS SIMULATIONS OF DFZ, Acta Mechanica Sinica, 13(4), 1997, pp. 377-382
Citations number
13
Journal title
ISSN journal
05677718
Volume
13
Issue
4
Year of publication
1997
Pages
377 - 382
Database
ISI
SICI code
0567-7718(1997)13:4<377:MSOD>2.0.ZU;2-C
Abstract
Dislocation emission from the crack tip in copper under mode II loadin g is simulated with molecular dynamics method. After 26 partial disloc ations are emitted and then relaxed to reach the equilibrium under the constant displacement, the double pile-ups (including an inverse pile -up and a pile-up) are formed. i.e., the first dislocation is piled up before the obstruction, and the last dislocation is piled up ahead of the crack tip. These results conform to the TEM observations.