Skip to main content

Research Repository

Advanced Search

Fracture characteristics of PEEK at various stress triaxialities

Chen, Fei; Gatea, Shakir; Ou, Hengan; Lu, Bin; Long, Hu

Fracture characteristics of PEEK at various stress triaxialities Thumbnail


Authors

Fei Chen

Shakir Gatea

HENGAN OU H.OU@NOTTINGHAM.AC.UK
Associate Professor

Bin Lu

Hu Long



Abstract

Polyether-ether-ketone (PEEK) is an alternative to metal alloys in orthopaedic applications. It gives significant advantages including excellent mechanical properties and non-toxicity. In this work, a set of specimens with different notched radii were selected to examine the effect of triaxial state of stress on the fracture behavior of PEEK. Fractographic analysis via scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) further elucidated the fracture micromechanisms. Distinct fracture patterns were identified under different stress triaxialities. In addition, the microstructural inclusion properties in PEEK specimen such as inclusion size and chemical composition were analysed and determined. Finite element simulations were carried out to evaluate the correlation of observed fracture characteristics with different stress triaxialities.

Citation

Chen, F., Gatea, S., Ou, H., Lu, B., & Long, H. (2016). Fracture characteristics of PEEK at various stress triaxialities. Journal of the Mechanical Behavior of Biomedical Materials, 64, 173-186. https://doi.org/10.1016/j.jmbbm.2016.07.027

Journal Article Type Article
Acceptance Date Jul 21, 2016
Online Publication Date Jul 30, 2016
Publication Date Dec 1, 2016
Deposit Date Aug 11, 2016
Publicly Available Date Mar 28, 2024
Journal Journal of the Mechanical Behavior of Biomedical Materials
Print ISSN 1751-6161
Electronic ISSN 1751-6161
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 64
Pages 173-186
DOI https://doi.org/10.1016/j.jmbbm.2016.07.027
Keywords PEEK; Stress triaxiality; Fracture; Finite element analysis
Public URL https://nottingham-repository.worktribe.com/output/825273
Publisher URL http://www.sciencedirect.com/science/article/pii/S1751616116302430
Additional Information This article is maintained by: Elsevier; Article Title: Fracture characteristics of PEEK at various stress triaxialities; Journal Title: Journal of the Mechanical Behavior of Biomedical Materials; CrossRef DOI link to publisher maintained version: https://doi.org/10.1016/j.jmbbm.2016.07.027; Content Type: article; Copyright: © 2016 The Authors. Published by Elsevier Ltd.

Files





You might also like



Downloadable Citations