midas NFX nafem benchmark

NAFEMS Benchmark: Hertz contact

Problem Description

Figure 1 shows an elastic cylinder pressed onto a rigid foundation. The rigid foundation is constrained in all directions. The cylinder is constrained in the horizontal direction along the inner edge to simulate the behavior of a half cylinder. The results are obtained for three load values; F = 25, 50, and 100 N. Geometric nonlinear analyses are carried out to determine the contact pressure along the contact interface, and the results are compared with the theoretical solution.

Figure 1. Pressed elastic cylinder model

To try this problem by yourself, you can download NFX 30 day free trial and model file.