Simulation of the intrusion of a non-deformable indenter process into defprmable barrier under conditions of plasticity

Yermilova Olesya Viktorovna

This article simulates the process of deep intrusion of a non-deformable indenter into a deformable barrier with the formation of plastic deformations. The aim of the work is an independent study of the process of plastic deformation of an axisymmetric barrier by an undeformable ball indenter. In the process of numerical mathematical modeling, the following problems were posed and solved: 1) comparing the values of the elastoplastic displacements of the points of the deformable barrier during the intrusion process; 2) comparison of the elastoplastic stresses developed in the process of deep penetration. The work uses the axisymmetric problem of the finite element method, which, as is known, is based on well-known assumptions of the classical theory of elasticity. The results of comparing generated functions of elastoplastic displacements and stresses with the corresponding analogues obtained as a result of using the standard program “Indenter” can be qualified as quite satisfactory.

Keywords:non-deformable ball indenter, deformable cylindrical barrier, elastoplastic displacements, axisymmetric problem, finite element method.