Співставлення емпіричного критерія руйнування з теорією підсумовування пошкоджень

Abstract

The known empirical criterion for the destruction of macroparticles of the material of the free side surface of a cylindrical sample during its end compression is considered. It is shown that under the conditions of plastic deformation with barrel formation, there is a point of reaching the limit state - the point of intersection of the trajectory of deformations in the coordinates of axial and circular deformations with a straight line, which reflects the empirical criterion of destruction. The expediency of the analytical and numerical research based on the theory of damage summation in comparison with the empirical criterion of destruction is substantiated.