From Micro to Macromechanics: A General Way of Obtaining Macroscopic Description from Microscopic Variables

摘要

A deformation of a macroscopic body is described at a microscopic level. Using the concept of an external, macroscopic control of the system a set of special "modes" of micro-deformations being sensitive on macroscopic influence is found out. These "modes" give a set of macroscopic variables enlarging the standard description of deformable media. The problem of microscopic relaxation is described by these new variables as an illustration.