Fracture characteristics of PEEK at various stress triaxialities
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...
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| Format: | Article |
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Elsevier
2016
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| Online Access: | https://eprints.nottingham.ac.uk/35810/ |
| _version_ | 1848795166068965376 |
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| author | Chen, Fei Gatea, Shakir Ou, Hengan Lu, Bin Long, Hu |
| author_facet | Chen, Fei Gatea, Shakir Ou, Hengan Lu, Bin Long, Hu |
| author_sort | Chen, Fei |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | 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. |
| first_indexed | 2025-11-14T19:27:46Z |
| format | Article |
| id | nottingham-35810 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:27:46Z |
| publishDate | 2016 |
| publisher | Elsevier |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-358102020-05-04T18:18:26Z https://eprints.nottingham.ac.uk/35810/ Fracture characteristics of PEEK at various stress triaxialities Chen, Fei Gatea, Shakir Ou, Hengan Lu, Bin Long, Hu 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. Elsevier 2016-12-01 Article PeerReviewed Chen, Fei, Gatea, Shakir, Ou, Hengan, Lu, Bin and Long, Hu (2016) Fracture characteristics of PEEK at various stress triaxialities. Journal of the Mechanical Behavior of Biomedical Materials, 64 . pp. 173-186. ISSN 1751-6161 PEEK; Stress triaxiality; Fracture; Finite element analysis http://www.sciencedirect.com/science/article/pii/S1751616116302430 doi:10.1016/j.jmbbm.2016.07.027 doi:10.1016/j.jmbbm.2016.07.027 |
| spellingShingle | PEEK; Stress triaxiality; Fracture; Finite element analysis Chen, Fei Gatea, Shakir Ou, Hengan Lu, Bin Long, Hu Fracture characteristics of PEEK at various stress triaxialities |
| title | Fracture characteristics of PEEK at various stress triaxialities |
| title_full | Fracture characteristics of PEEK at various stress triaxialities |
| title_fullStr | Fracture characteristics of PEEK at various stress triaxialities |
| title_full_unstemmed | Fracture characteristics of PEEK at various stress triaxialities |
| title_short | Fracture characteristics of PEEK at various stress triaxialities |
| title_sort | fracture characteristics of peek at various stress triaxialities |
| topic | PEEK; Stress triaxiality; Fracture; Finite element analysis |
| url | https://eprints.nottingham.ac.uk/35810/ https://eprints.nottingham.ac.uk/35810/ https://eprints.nottingham.ac.uk/35810/ |