Paper Title:
Simulation of Discrete Dislocation Statics and Dynamics of Magnesium Foam
  Abstract

The simulation of magnesium plasticity at the microscopic and mesoscopic scale using space and time-discretized statics and dynamics dislocation was carried out. The complexity of discrete dislocation models dues to the fact that the mechanical interaction of ensembles of such defects is with an elastic nature, and therefore involves long-range interactions. The motion of dislocations or dislocation segments in their respective glide planes are usually described by assuming simple phenomenological viscous flows laws. The formulation of the dislocation dynamics is obtained by the Newton’s Second Law of motion for each dislocation or dislocation segment. The evolution of the dislocation position is obtained by simple difference algorithms.

  Info
Periodical
Materials Science Forum (Volumes 675-677)
Edited by
Yi Tan and Dongying Ju
Pages
929-932
DOI
10.4028/www.scientific.net/MSF.675-677.929
Citation
M. Diop, H. Hao, H. W. Dong, X. G. Zhang, "Simulation of Discrete Dislocation Statics and Dynamics of Magnesium Foam", Materials Science Forum, Vols. 675-677, pp. 929-932, 2011
Online since
February 2011
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