In the present paper, experimental investigations were conducted to assess the effect of nanomodification on the impact behaviours of hybrid composite plates. Graphene nanoplatelets (GNPs) of two different sizes, 5 and 30 μm, were used to modify a composite material made with 64 wt.% of unidirectional fibres and a low-viscosity epoxy resin. The effect of the nanomodification with 30 μm GNPs was also studied on composite plates prepared with a higher viscosity resin. Three laminate thicknesses (4, 8, and 16 layers) were tested with a standard drop dart testing technique. The peak forces as well as the absorbed energy and the fracture surfaces, observed with a Scanning Electron Microscope (SEM), were compared. Experimental results showed that nano-modification with 5 μm particles had a detrimental effect on both the peak forces and the absorbed energy, whereas the addition of 30 μm GNPs increased the absorbed energy, especially for a laminate thickness of 16 layers. Overall, the experimental results demonstrated that the size of graphene nanoparticles has a significant effect on the impact response of composite laminates.
Effect of graphene nanoplatelets on the impact response of a carbon fibre reinforced composite / Elmarakbi, A.; Ciardiello, R.; Tridello, A.; Innocente, F.; Martorana, B.; Bertocchi, F.; Cristiano, F.; Elmarakbi, M.; Belingardi, G.. - In: MATERIALS TODAY COMMUNICATIONS. - ISSN 2352-4928. - 25(2020), p. 101530.
|Titolo:||Effect of graphene nanoplatelets on the impact response of a carbon fibre reinforced composite|
|Data di pubblicazione:||2020|
|Digital Object Identifier (DOI):||http://dx.doi.org/10.1016/j.mtcomm.2020.101530|
|Appare nelle tipologie:||1.1 Articolo in rivista|
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