Titel Contact simulation of real worn surfaces with polymeric composites on the microscale
Autor D. Nadermann, A. Elter, H. Schwarze
Infos zum Autor D. Nadermann 1)*), A. Elter 1), H. Schwarze 2)

1) Robert Bosch GmbH, Corporate Research, Robert-Bosch-Campus 1, 71272 Renningen

2) Clausthal University of Technology, Institute of Tribology and Energy Conversion Machinery, Leibnizstraße 32, 38678 Clausthal-Zellerfeld

*) corresponding author: daniel.nadermann@de.bosch.com
Inhalt Abstract
The amount of polymeric composites increases in tribological applications. Mixed lubrication simulations can be used for friction prediction, where the real rough surface is taken into account. Current approaches to calculate the contact pressure curve are mainly based on the computational efficient half space theory. This work evaluates the validity of the half space approach for heterogeneous materials (PEEK CF30) on the microscale level by comparing the contact pressure curve with FEA calculations. Therefore a workflow is introduced to digitalize real rough heterogeneous surfaces. It is shown that the half space approach leads to the same results for homogeneous and to different results for heterogeneous materials compared to FEA solutions. Additionally pressure and temperature dependencies of the contact pressure curve for PEEK CF30 are shown.
Datum 2017