The Portevin-Le Chatelier effect and dynamical systems

Abstract

Let us consider Portevin-Le Chatelier (PLC) effect as a form of dynamic material instability. The tools of the investigation are the same as of the theory of dynamical systems. While at the PLC phenomenon negative rate dependence is coupled with the appearance of a self-sustained oscillatory behaviour in solid bodies, the results present us an interpretation of PLC as a flutter type of loss of material stability.