Influence of loading conditions on the overall mechanical behavior of polyether-ether-ketone (PEEK)
Article dans une revue avec comité de lecture
Testing methods have been developed to compare the mechanical responses and failure behavior of polyether-ether-keton (PEEK) thermoplastic polymer; under quasi-static, high strain rate tensile tests and fatigue loading. Tensile tests were performed with the strain rates varying from 0.0003 s−1 to 60 s−1 and at different temperatures to compare the flow characteristics of the samples undergone various testing conditions. Fatigue tests at different amplitudes and frequencies were also performed to evaluate the temperature rise during cyclic loading and its effect on the fracture behavior. Results show that dynamic tension, in comparison with quasi-static behavior, causes brittle fracture; whereas under fatigue test at high frequencies and loading amplitudes the material behaves not only a more ductile behavior but also it clearly shows the influences of induced self-heating in the modulus and mechanical properties of the PEEK were significant. So the major aim of this article is to discuss about the induced temperature and its effect on the fracture surface. Thermal fatigue has a very significant role in increasing temperature and reducing fatigue life; from there it is necessary to know the conditions at which thermal fatigue happens and also the amount of energy which is consumed. Obtained equation from the experimental results and calculations can estimate the energy dissipation in the fatigue tests which is as a function of cycle and frequency.
Files in this item
Showing items related by title, author, creator and subject.
Article dans une revue avec comité de lectureSHIRINBAYAN, Mohammadali; MONTAZERI, A.; NOURI SEDEH, M.; ABBASNEZHAD, Navideh; FITOUSSI, Joseph; TCHARKHTCHI, Abbas (Springer Verlag, 2021)Nowadays, polyamide 12 (PA-12) is considered as an interesting polymer in the rotomolding process to manufacture different pieces like the liner part in the storage hydrogen tank (type IV). In this study, the pure polyamide-12 ...
Mechanical characterization of a Low Density Sheet Molding Compound (LD-SMC): Multi-scale damage analysis and strain rate effect Article dans une revue avec comité de lectureSHIRINBAYAN, Mohammadali; FITOUSSI, Joseph; ABBASNEZHAD, Navideh; MERAGHNI, Fodil; SUROWIEC, Benjamin; TCHARKHTCHI, Abbas (Elsevier, 2017)This paper presents the results of an overall experimental characterization of the mechanical behavior of a Low Density Sheet Molding Compound (LD-SMC). LD-SMC is a polyester matrix containing mineral charge (CaCO3) ...
Tension, compression, and shear behavior of advanced sheet molding compound (A-SMC): Multi-scale damage analysis and strain rate effect Article dans une revue avec comité de lectureSHIRINBAYAN, Mohammadali; BEIGI RIZI, Hassan; ABBASNEZHAD, Navideh; TCHARKHTCHI, Abbas; FITOUSSI, Joseph (Elsevier BV, 2021)Advanced sheet molding compounds (A-SMC) are a new generation of alternative materials to steels for applying in automotive structures. It contains a thermoset matrix involving mineral charge (CaCO3) reinforced with a high ...
Article dans une revue avec comité de lectureABBASNEZHAD, Navideh; ZIRAK, Nader; SHIRINBAYAN, Mohammadali; TCHARKHTCHI, Abbas; BAKIR, Farid (Elsevier, 2021)Physical and mechanical properties of the drug-incorporated polymer play a significant role in the release behavior from the drug carriers. Understanding the relative extent of variation in the physical and mechanical ...
In vitro study of drug release from various loaded polyurethane samples and subjected to different non-pulsed flow rates Article dans une revue avec comité de lectureABBASNEZHAD, Navideh; SHIRINBAYAN, Mohammadali; TCHARKHTCHI, Abbas; BAKIR, Farid (Elsevier, 2020)Drug-eluting implants with a polymeric matrix are currently widely used and the interest of modeling their behavior is increasing. This article aims to present preliminary results of an in vitro under steady flow, study ...