The Features of Localized Plasticity Autowaves in Solids

The localized plastic deformation and the law-like regularities underlying its development in solids are considered. The characteristic features of localized plasticity are analyzed for a wide range of materials. Thus a correlation is established between the products of scales and of process rates obtained for the elastic and plastic deformation. It is a favorable ground for hypothesizing causal links between the elastic and plastic deformation by introducing an elastic-plastic invariant, which is the master equation of the autowave plasticity model being developed. Localized plasticity phenomena are proposed to be addressed in the frame of autowave and quasi-particle approach.

本文聚焦于固体中的局域塑性变形及其演化过程所固有的类定律规律性。针对广泛的材料体系，本文分析了局域塑性的典型特征，由此确立了弹性变形与塑性变形所对应的尺度乘积与过程速率之间的相关性。这为通过引入弹塑性不变量（即当前正在构建的自波塑性模型（autowave plasticity model）的主控方程）来假设弹性变形与塑性变形间的因果关联提供了坚实基础。研究提出，局域塑性现象应基于自波与准粒子（quasi-particle）方法的框架开展探讨。