The effect of temperature on fatigue strength of poly(ether‐imide)/multiwalled carbon nanotube/carbon fibers composites for aeronautical application

This work concerns the fatigue behavior at three different temperature conditions (−40, 20, and 80°C) and the addition of multiwalled carbon nanotube (MWCNT) into a carbon‐fiber reinforced poly(ether‐imide) composite. The incorporation of MWCNT into the composite increased the tensile strength and Y...

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Bibliographic Details
Published in:Journal of applied polymer science 2020-10, Vol.137 (39), p.n/a
Main Authors: Santos, Luis F. P., Ribeiro, Bruno, Hein, Luis R. O., Alderliesten, René, Zarouchas, Dimitrios, Botelho, Edson C., Costa, Michelle L.
Format: Article
Language:English
Subjects:
Carbon
Carbon fibers
composites
Compression tests
Compressive strength
Ductile fracture
Fatigue strength
Fiber composites
fullerenes
graphene
Heat treating
Interfacial shear strength
Laminates
Low temperature
Materials science
mechanical properties
microscopy
Modulus of elasticity
Multi wall carbon nanotubes
Nanoparticles
nanotubes
Polyetherimides
Polymers
Shear strength
Shear tests
Temperature effects
Tensile strength
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Summary:This work concerns the fatigue behavior at three different temperature conditions (−40, 20, and 80°C) and the addition of multiwalled carbon nanotube (MWCNT) into a carbon‐fiber reinforced poly(ether‐imide) composite. The incorporation of MWCNT into the composite increased the tensile strength and Young's modulus by up 5 and 2%, respectively. At low temperature, the incorporation of the nanoparticles improved the fatigue strength of the laminates by 15%. The shear strength results obtained by interlaminar shear strength and compression shear test tests have shown an increase of about 16 and 58%, respectively, by the introduction of nanotubes into the laminates. Fractographic observations revealed that the surface of carbon nanotube laminate (PEI/MWCNT/CF) presented a ductile behavior, and differences in the fracture aspects of the material compared to the traditional PEI/CF laminate have been observed.
ISSN:0021-8995
1097-4628
DOI:10.1002/app.49160