Journal
POLYMERS
Volume 13, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/polym13111779
Keywords
poly(ether ether ketone); thermo-mechanical response; constitutive modeling
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Funding
- Innovationsfonden (Innovation Fund Denmark)
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Observations are reported on PEEK in uniaxial tensile tests, relaxation tests and creep tests at temperatures ranging from room temperature to 180 degrees C. Constitutive equations are developed for PEEK's thermo-mechanical behavior under uniaxial deformation, with adjustable parameters found by matching experimental data. Good agreement is shown between observations and results of numerical simulation, indicating similar activation energies for various responses at temperatures above the glass transition point.
Observations are reported on poly(ether ether ketone) (PEEK) in uniaxial tensile tests, relaxation tests and creep tests with various stresses in a wide interval of temperatures ranging from room temperature to 180 degrees C. Constitutive equations are developed for the thermo-mechanical behavior of PEEK under uniaxial deformation. Adjustable parameters in the governing equations are found by matching the experimental data. Good agreement is demonstrated between the observations and results of numerical simulation. It is shown that the activation energies for the elastoplastic, viscoelastic and viscoelastoplastic responses adopt similar values at temperatures above the glass transition point.
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