Response of carbon/PEEK automotive driveshafts with/without an inner isotropic layer at high temperature considering temperature-dependent material properties

James C. Hastie, Igor A. Guz, Maria Kashtalyan

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
36 Downloads (Pure)

Abstract

Lightweight fibre-reinforced thermoplastic (FRTP) driveshafts are ideal for automotive applications. In this work, material and buckling failures of FRTP driveshafts subjected to torsion at elevated temperature are analysed by finite element modelling. Critical speed at increasing temperature is also quantified. The driveshafts comprise unidirectional carbon/polyetheretherketone (PEEK) layers with/without an inner layer of aluminium or unreinforced plastic. Temperature-dependent material properties are considered. The results demonstrate achievable performance of the fully carbon/PEEK and hybrid driveshafts, which are compared with traditional alloy counterparts. The carbon/PEEK shaft exhibits marked temperature sensitivity but satisfies the design requirements at high temperature with significant weight reduction. A hybrid shaft composed of carbon/PEEK layers over-wrapped onto an aluminium tube provides a compromise in terms of superior buckling resistance and critical speed but reduced material failure safety factor. Utilising a thick layer of unreinforced plastic to reduce fibre volume may only be suitable for low-temperature, low-speed applications.
Original languageEnglish
Pages (from-to)1406-1415
Number of pages10
JournalProceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
Volume237
Issue number6
Early online date6 Dec 2022
DOIs
Publication statusPublished - Jun 2023

Keywords

  • Hybrid laminates
  • macroscopic failure criteria
  • shaft buckling
  • shaft critical speed

ASJC Scopus subject areas

  • General Materials Science
  • Mechanical Engineering

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