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

Santos, Luis F.P.; Ribeiro, Bruno; Hein, R.; Alderliesten, R.C.; Zarouchas, D.; Botelho, Edson Cocchieri; Costa, Michelle Leali

doi:10.1002/app.49160

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

Journal article (2020)

Authors

Luis F.P. Santos São Paulo State University

Bruno Ribeiro Universidade Federal de Sao Paulo

R. Hein São Paulo State University

R.C. Alderliesten Structural Integrity & Composites - Aerospace Engineering

D. Zarouchas Structural Integrity & Composites - Aerospace Engineering

Edson Cocchieri Botelho São Paulo State University

Michelle Leali Costa São Paulo State University

Research Group

Structural Integrity & Composites (Aerospace Engineering) (TU Delft)

DOI: https://doi.org/10.1002/app.49160

Microscopy Graphene Composites Mechanical properties Nanotubes Fullerenes

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Published Date

15-10-2020

Language

English

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Faculty

Aerospace Engineering

Department

Aerospace Structures & Materials

Research Group

Structural Integrity & Composites

Abstract

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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