Fracture and fatigue behavior of carbon/epoxy laminates modified by nanofibers

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Fracture and fatigue behavior of carbon/epoxy laminates modified by nanofibers

Journal Article (2020)

Author(s)

Reza Mohammadi (Amirkabir University of Technology)

Mehdi Najafabadi (Amirkabir University of Technology)

Hamed Saghafi (Tafresh University, Amirkabir University of Technology)

D. Zarouchas (TU Delft - Structural Integrity & Composites)

Research Group

Structural Integrity & Composites

DOI related publication

https://doi.org/10.1016/j.compositesa.2020.106015

Composite laminates Fatigue loading Mode-I fracture toughness Nylon 66 nanofibers

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Publication Year

2020

Language

English

Research Group

Structural Integrity & Composites

Volume number

137

Abstract

This research focused on fracture and fatigue response of carbon/epoxy laminates modified with electrospun nylon 66 nanofibers. For this purpose, AS4/8552 composite laminates interleaved by nanofibrous mat were considered under mode-I quasi-static and fatigue loading conditions. According to test outcomes, the fracture toughness increased about 133% under quasi-static tests. On the other hand, the plotted fatigue curves showed that the crack growth rate significantly decreased in modified samples and the threshold energy release rate enhanced about 128%. Finally, scanning electron microscopy (SEM) was also conducted to investigate the damage mechanisms.

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