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

Author(s)

Santos, Luis F. P. ^[1] ; Ribeiro, Bruno ^[2] ; Hein, Luis R. O. ^[1] ; Alderliesten, Rene ^[3] ; Zarouchas, Dimitrios ^[3] ; Botelho, Edson C. ^[1] ; Costa, Michelle L. ^[1]

Affiliation

^[1] Sao Paulo State Univ, UNESP, Mat & Technol Dept, Sch Engn, Guaratingueta - Brazil

^[2] Fed Univ Sao Paulo UNIFESP, Inst Sci & Technol, Sao Jose Dos Campos - Brazil

^[3] Delft Univ Technol TU DELFT, Struct Integr & Composites, Aerosp Engn, Delft - Netherlands

• Document type: Journal article
• Source: Journal of Applied Polymer Science; v. 137, n. 39 FEB 2020.
• Web of Science Citations: 1

Abstract

This work concerns the fatigue behavior at three different temperature conditions (-40, 20, and 80 degrees 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. (AU)

• FAPESP's process: 17/09344-5 - Evaluation of fatigue strength of composites PEI/carbon fiber nanostructured with aeronautical applications
• Grantee: Luis Felipe de Paula Santos
• Support Opportunities: Scholarships abroad - Research Internship - Master's degree
• FAPESP's process: 17/16970-0 - Obtaining and Characterization of Nanostructured Thermoplastic Composites for Aeronautical Application
• Grantee: Edson Cocchieri Botelho
• Support Opportunities: Regular Research Grants
• FAPESP's process: 18/07867-3 - Processing and characterization of multifunctional thermoplastic composites reinforced with carbon fibers and buckypaper of carbon nanotubes
• Grantee: Luis Felipe de Paula Santos
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 16/12810-5 - Evaluation of fatigue strength of composites PEI/carbon fiber nanostructed with aeronautical applications
• Grantee: Luis Felipe de Paula Santos
• Support Opportunities: Scholarships in Brazil - Master