It is noted that the analogy provides a simple understanding of the occurrence of serrations in certain bands of strain rate and temperature.

Acta Metallurgica

Abstract The instability associated with repeated yield drop is examined using the language of electronics. As in the case of various chemical and biological oscillators, it is argued that serrations occur when the load line intersects the material characteristic in an unstable region. An important difference is that the material characteristic itself evolves or becomes ‘dressed’ during deformation. The electrical equivalent of the machine equation is written down, based on which an analog computer has been constructed. Patterns obtained with this computer simulating various tensile test conditions are presented. It is noted that the analogy provides a simple understanding of the occurrence of serrations in certain bands of strain rate and temperature. The results of a few related papers are also briefly discussed from the present perspective.

It is noted that the analogy provides a simple understanding of the occurrence of serrations in certain bands of strain rate and temperature.

Instability associated with repeated yield drop