Thermo‐mechanical model to predict the tribological behaviour of the composite PEEK‐CF30/steel pair in dry sliding using multiple regression analysis

Abstract

Purpose

PEEK is an abbreviation for polyetheretherketone, a high performance engineering semicrystalline thermoplastic. This material can operate at higher temperatures and has excellent friction and wear properties, which are optimised in the specially formulated tribological grade PEEK‐CF30. The purpose of this work was to develop a thermo‐mechanical model to predict the tribological behaviour of the composite PEEK‐CF30/steel pair, in dry sliding, related to friction and wear with the pv factor, the temperature and the sliding distance, using multiple regression analysis (MRA).

Design/methodology/approach

This paper presents a new thermo‐mechanical model to predict the tribological behaviour of the composite PEEK‐CF30/steel pair, in dry sliding, using MRA. A plan of experiments was performed on a pin‐on‐disc machine PLINT TE67HT^®.

Findings

The objective was to establish a thermo‐mechanical model to predict the PEEK‐CF30 behaviour related to friction and wear with the pv factor (product of apparent pressure of contact and sliding velocity), the temperature and the sliding distance. This model was obtained by multiple linear regression. Finally, confirmation tests were performed to make a comparison between the obtained results from the mentioned model and the experimental results.

Originality/value

The novel element of this paper is the application of design experiments and MRA in tribological model behaviour in an advanced material – PEEK‐CF 30.

Citation

Paulo Davim, J. and Cardoso, R. (2005), "Thermo‐mechanical model to predict the tribological behaviour of the composite PEEK‐CF30/steel pair in dry sliding using multiple regression analysis", Industrial Lubrication and Tribology, Vol. 57 No. 5, pp. 181-186. https://doi.org/10.1108/00368790510614145