Produção Nacional
Revisado por pares
The effect of temperature on fatigue strength of poly(ether‐imide)/multiwalled carbon nanotube/carbon fibers composites for aeronautical application
2020; Wiley; Volume: 137; Issue: 39 Linguagem: Inglês
10.1002/app.49160
ISSN1097-4628
AutoresLuis Felipe de Paula Santos, Bruno Ribeiro, Luís Rogério de Oliveira Hein, René Alderliesten, Dimitrios Zarouchas, Edson Cocchieri Botelho, Michelle Leali Costa,
Tópico(s)Tribology and Wear Analysis
ResumoAbstract 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.
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