Simulation of a pre-deformed plate compression by two indenters of complex shape

Abstract

Within the framework of linearized formulation of the elasticity theory problems, the stress-strain state of a pre-deformed plate, which is modeled by a pre-stressed layer, is analyzed in the case of its smooth contact interaction with a two rigid axisymmetric indenters. The dual integral equations of the problem are solved by representing the quested-for functions in the form of a partial series sum by the Bessel functions with unknown coefficients. Finite systems of linear algebraic equations are obtained for determination of these coefficients. The influence of the initial strains on the magnitude and features of the contact stresses and vertical displacements on the surface of the plate is analyzed for the case of compressible and incompressible solids. In order to illustrate the results, the cases of the Bartenev – Khazanovich and the harmonic-type potentials are addressed.