Modeling Of Head-Check Cracks With FEA Simulation And Twin Disc Measurements

The rail industry has made great improvements since its inception. The load and speed are greatly increased to the initial state. Comfort-enhancing electronic systems have also become commonplace and are used by all vehicles. As a result of these modifications, the operating conditions are deviating from those experienced so far and new failure modes have emerged. New calculation procedures and methods need to be developed due to the differences in lifetime and failure behaviour. With calculations and simulation models, we are able to give a more accurate estimate of lifetime. The estimates make operation easier and more economical, and also improve the safety of operation.