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Journal of Solid Mechanics and Materials Engineering
Vol. 2 (2008) No. 10 Outstanding Researches by Promising Young Researchers in Mechanics and Materials Division I [from outstanding papers in 2008 M&M young researchers' international symposium] P 1348-1359

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http://doi.org/10.1299/jmmp.2.1348

Papers(Special Issue)

The interaction of dislocations with a static mode I crack is studied by large scale molecular dynamics simulations. The model consists of a blunted [001](110) crack in nickel, to which after relaxation at K < KIc the displacement field of a dislocation is added. The response of the system is monitored during its evolution in the micro-canonical ensemble. The simulations allowed to identify different characteristic processes during the interaction of the impinging dislocation with the crack. In particular, stimulated dislocation emission and cross slip processes are observed to be important for the development of a plastic zone.

Copyright © 2008 by The Japan Society of Mechanical Engineers

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