title: A constitutive model of polyether-ether-ketone (PEEK).
abstract: 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.
authors.affiliation: Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, Nottingham NG7 2 RD, UK.
authors.forename: Fei
authors.initials: F
authors.lastname: Chen
authors.affiliation: Department of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, Nottingham NG7 2 RD, UK. Electronic address: H.Ou@nottingham.ac.uk.
authors.forename: Hengan
authors.initials: H
authors.lastname: Ou
authors.affiliation: Institute of Forming Technology and Equipment, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, PR China; Department of Mechanical Engineering, University of Sheffield, Sheffield S1 3JD, UK.
authors.forename: Bin
authors.initials: B
authors.lastname: Lu
authors.affiliation: Department of Mechanical Engineering, University of Sheffield, Sheffield S1 3JD, UK.
authors.forename: Hui
authors.initials: H
authors.lastname: Long
mesh_terms: D001577:Benzophenones; D007659:Ketones; D008962:Models, Theoretical; D011092:Polyethylene Glycols; D011108:Polymers; D013314:Stress, Mechanical; D013696:Temperature
chemical_list: D001577:Benzophenones; D007659:Ketones; D011108:Polymers; C063834:polyetheretherketone; D011092:Polyethylene Glycols
keywords: Elevated temperature; Flow stress; Modelling; PEEK