Model of plastic strain of material on a free surface of cylindrical patterns during axial-symmetric compression. Part 1. Approximation of strains

Abstract

The problem of the experimental data’s approximation, necessary for accumulated strain definition under conditions of complex strain which occur on a free lateral surface during axial-symmetric compression of cylindrical patterns under different conditions of friction at the end faces is considered in details. The detailed analytical analysis and known technique improvement of strain approximation on the basis of the differential equation is made, as well as information technologies of dependences definition between deformations on a free lateral surface of the cylindrical sample during compression on its basis are developed.