Bulletin of Materials Science

, Volume 17, Issue 6, pp 771–781 | Cite as

Formation and propagation of bands in jerky flow: a coupled lattice map description

  • G Ananthakrishna


There has been revival of interest in Jerky flow from the point of view of dynamical systems. The earliest attempt in this direction was from our group. One of the predictions of the theory is that Jerky flow could be chaotic. This has been recently verified by us. We have recently extended the earlier model to account for the spatial aspect as well. Both these models are in the form of coupled set of nonlinear differential equations and hence, they are complicated in their structure. For this reason we wish to devise a model based on the results of these two theories in the form of coupled lattice map for the description of the formation and propagation of dislocation bands. We report here one such model and its results.


Jerky flow Portevin-Le Chatelier effect chaos coupled lattice maps 


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Copyright information

© Indian Academy of Sciences 1994

Authors and Affiliations

  • G Ananthakrishna
    • 1
  1. 1.Materials Research CentreIndian Institute of ScienceBangaloreIndia

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