Extensive numerical analyzes with varying moduli of elasticity and varying geometries (diameter and disc size) always show an analogous course of deformations, stresses and distortions at the contact area. These curves rep- resent similar trigonometric functions but with different constant parameters. Building on this knowledge, in the first step, trigonometric section-force functions are used as statically indeterminate boundary functions. The unknown parameters of these section-force func- tions can be determined in the second step with the displacement compatibility at the contact area.