TypeConference
TitleMultiscale simulation approach of journal bearings with short carbon fiber reinforced PEEK - Predicting friction and wear under steady state conditions
SourceAsiatrib-2018, pp. 77-79
AuthorD. Nadermann, A. Elter, S. Solovyev, H. Schwarze

Abstract

The use of new polymeric composites leads to new challenges in mixed lubrication simulations like high temperature dependence of mechanical properties as well as heterogeneity on the microscale. This work focuses on the mixed lubrication simulation of journal bearings with polyetheretherketone (PEEK) with 30 % short carbon fibers (SCF). The presented approach considers semi deterministic heterogeneity on the microscale. A finite element (FEA) microscale model based on the real measured roughnesses combined with the fiber distribution obtained from light microscopy is developed. The macroscale simulation is extended by temperature dependent stiffness matrices and by a postprocessing wear simulation based on Archard’s law. The proposed simulation approach can predict friction and wear of a lubricated short fiber reinforced polymers (SFRP) in tribological systems under steady state conditions. 


Content

Asiatrib-2018, pp. 77-79