![]() ![]() Due to the versatility of its material properties, the. PEEK MATERIAL PROPERTIES AND CHARACTERISTICS Highest heat resistant plastic: PEEK Material with excellent creep and fatigue resistance PEEK bearing materials. 28, are required to analyze the effects of load amplitude. Results show that the employed model is applicable to capture microstructural effects on fatigue behavior of PEEK.įatigue life estimation Fatigue modeling Polyether ether ketone (PEEK) Strain-life approach Structure–property relations Thermoplastics.Ĭopyright © 2015 Elsevier Ltd. In this study, the effects of microstructural inclusions on fatigue life of polyether ether ketone (PEEK) was investigated. For this thermally dominated fatigue regime, further experiments, such as those carried out by Berer et al. On the other hand, Beguelin et al (1991) reported mode I results of a PEEK matrix carbon composites only a small reduction in the value of K IC as the test rate was similarly increased. Based on the experimental strain-life results and the observed microstructure of fatigue specimens, a microstructure-sensitive fatigue model was used to predict the fatigue life of PEEK that includes both crack incubation and small crack growth regimes. epoxy as well as for thermoplastic polyether etherketone (PEEK) composites, as the test rate was increased from a few mm/min to about 1m/s. In this study, the effects of microstructural inclusions on fatigue life of polyether ether ketone (PEEK) was investigated. SEM analysis was also conducted on the fracture surface of fatigue specimens to observe microstructural inclusions that served as the crack incubation sites. Effects of processing variables on fatigue in molded PEEK and its short fiber composites were discussed in 7, 8 considering fatigue crack propagation (FCP) aspects. The microstructure of PEEK was obtained using the optical and the scanning electron microscope (SEM) to determine the microstructural inclusion properties in PEEK specimen such as inclusion size, type, and nearest neighbor distance. To obtain the cyclic behavior of PEEK, uniaxial fully-reversed strain-controlled fatigue tests were conducted at ambient temperature and at 0.02 mm/mm to 0.04 mm/mm strain amplitudes. Due to the versatility of its material properties, the semi-crystralline PEEK polymer has been increasingly adopted in a wide range of applications particularly as a biomaterial for orthopedic, trauma, and spinal implants. In this study, the effects of microstructural inclusions on fatigue life of polyether ether ketone (PEEK) was investigated. process occurs which enhanced the low stress level fatigue resistance of.
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