Journal
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
Volume 53, Issue -, Pages 427-433Publisher
ELSEVIER
DOI: 10.1016/j.jmbbm.2015.08.037
Keywords
PEEK; Flow stress; Modelling; Elevated temperature
Funding
- Engineering and Physical Sciences Research Council (EPSRC) of the UK [EP/K029592/1, EP/L02084X/1]
- Marie Curie International Incoming Fellowship [628,055, 913,055]
- International Research Staff Exchange Scheme (IRSES, MatProFuture project) within the 7th European Community Framework Programme (FP7) [3 18968]
- EPSRC [EP/L02084X/1, EP/K029592/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/K029592/1, EP/L02084X/1] Funding Source: researchfish
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A modified Johnson-Cook (JC) model was proposed to describe the flow behaviour of polyether-ether-ketone (PEEK) with the consideration of coupled effects of strain, strain rate and temperature. As compared to traditional JC model, the modified one has better ability to predict the flow behaviour at elevated temperature conditions. In particular, the yield stress was found to be inversely proportional to temperature from the predictions of the proposed model. (C) 2015 The Authors. Published by Elsevier Ltd.
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