EFFECT OF THE HARDENABLE MATERIAL CHARACTERISTICS ON THE ELASTOPLASTIC INTRODUCTION OF A SPHERICAL IRREGULARITY
Using the results of the finite-element analysis while introducing a spherical indenter into elastoplastic half-space at a relatively shallow depth and describing the true stress while stretching (compressing) with power function, the authors have produced the parameter that takes into consideration the material hardening in the process of contact loading deformation. At a certain modulus of elasticity, the derived parameter is defined by the yield point σy and the exponent index n and can be used for engineering computation of elastoplastic deformation.