Enhanced fracture toughness of hierarchical carbon nanotube reinforced carbon fibre epoxy composites with engineered matrix microstructure

2019 ◽  
Vol 170 ◽  
pp. 85-92 ◽  
Author(s):  
M. Shukur Zainol Abidin ◽  
Tomi Herceg ◽  
Emile S. Greenhalgh ◽  
Milo Shaffer ◽  
Alexander Bismarck
Keyword(s):  
Fracture Toughness ◽  
Carbon Nanotube ◽  
Carbon Fibre ◽  
Epoxy Composites ◽  
Matrix Microstructure ◽  
Hierarchical Carbon

scholarly journals Mixed-Mode Interlaminar Fracture Toughness of Glass and Carbon Fibre Powder Epoxy Composites—For Design of Wind and Tidal Turbine Blades

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2103
Author(s):  
Christophe Floreani ◽  
Colin Robert ◽  
Parvez Alam ◽  
Peter Davies ◽  
Conchúr M. Ó. Brádaigh
Keyword(s):  
Fracture Toughness ◽  
Carbon Fibre ◽  
Composite Structures ◽  
Mixed Mode ◽  
Epoxy Composites ◽  
Mode I ◽  
Mode Ii ◽  
Pure Mode ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture

Powder epoxy composites have several advantages for the processing of large composite structures, including low exotherm, viscosity and material cost, as well as the ability to carry out separate melting and curing operations. This work studies the mode I and mixed-mode toughness, as well as the in-plane mechanical properties of unidirectional stitched glass and carbon fibre reinforced powder epoxy composites. The interlaminar fracture toughness is studied in pure mode I by performing Double Cantilever Beam tests and at 25% mode II, 50% mode II and 75% mode II by performing Mixed Mode Bending testing according to the ASTM D5528-13 test standard. The tensile and compressive properties are comparable to that of standard epoxy composites but both the mode I and mixed-mode toughness are shown to be significantly higher than that of other epoxy composites, even when comparing to toughened epoxies. The mixed-mode critical strain energy release rate as a function of the delamination mode ratio is also provided. This paper highlights the potential for powder epoxy composites in the manufacturing of structures where there is a risk of delamination.

Carbon nanotube-reinforced carbon fibre-epoxy composites manufactured by resin film infusion

2018 ◽  
Vol 166 ◽  
pp. 169-175 ◽  
Author(s):  
Mostafa Yourdkhani ◽  
Wenjiao Liu ◽  
Simon Baril-Gosselin ◽  
François Robitaille ◽  
Pascal Hubert
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fibre ◽  
Epoxy Composites ◽  
Resin Film

Carbon nanotube-reinforced epoxy-composites: enhanced stiffness and fracture toughness at low nanotube content

2004 ◽  
Vol 64 (15) ◽  
pp. 2363-2371 ◽  
Author(s):  
F.H. Gojny ◽  
M.H.G. Wichmann ◽  
U. Köpke ◽  
B. Fiedler ◽  
K. Schulte
Keyword(s):  
Fracture Toughness ◽  
Carbon Nanotube ◽  
Epoxy Composites

Delamination Behaviour of Rubber-Toughened Carbon Fibre/Epoxy Composites

2013 ◽  
Vol 392 ◽  
pp. 73-77
Author(s):  
Helen Wu
Keyword(s):  
Fracture Toughness ◽  
Plastic Zone ◽  
Carbon Fibre ◽  
Composite Laminates ◽  
Epoxy Composites ◽  
Interlaminar Fracture Toughness ◽  
Interlaminar Fracture ◽  
The Matrix ◽  
Key Factor ◽  
Modified Epoxy

In this study, core-shell rubber (CSR) and liquid rubber (LR) were used to modify the matrix toughness of unidirectional carbon fibre/epoxy composites. Double cantilever beam (DCB) and end notched flexure (END) tests were performed to evaluate the interlaminar fracture toughness. It was found that LR was identified to be more effective than CSR in improving GICand GIICof the composites, although fracture toughness of the CSR-modified epoxy was better than that of the LR-modified epoxy. SEM observation of post-fracture surfaces of the specimens shows that the degree of plastic deformation of matrix is well related to the rating of fracture toughness of composites for these unmodified and modified composite laminates, and is the key factor controlling the interlaminar fracture toughness of composite laminates. Further, it was confirmed that rigid fibres constrain growth of plastic zone in composites laminates, comparing with toughened bulk epoxy matrix. However, plastic zone is not limited to a single resin layer and it is capable of developing across rigid fibre layers.

scholarly journals Enhancing the fracture toughness of carbon fibre/epoxy composites by interleaving hybrid meltable/non-meltable thermoplastic veils

2020 ◽  
Vol 252 ◽  
pp. 112699
Author(s):  
Dong Quan ◽  
René Alderliesten ◽  
Clemens Dransfeld ◽  
Neal Murphy ◽  
Alojz Ivanković ◽  
...  
Keyword(s):  
Fracture Toughness ◽  
Carbon Fibre ◽  
Epoxy Composites

scholarly journals The Fabrication of Hierarchical Carbon Nanotube/carbon fibre/polyethylene Composites via Twin Screw Extruder

2018 ◽  
Vol 237 ◽  
pp. 01006
Author(s):  
Chao Hu ◽  
Xinwen Liao ◽  
Qinghua Qin ◽  
Gang Wang
Keyword(s):  
Carbon Nanotube ◽  
Carbon Fibre ◽  
Mechanical Performance ◽  
Mechanical Test ◽  
Tensile Modulus ◽  
Spray Coating ◽  
Content Increase ◽  
The Matrix ◽  
Twin Screw ◽  
Hierarchical Carbon

In this research, the hierarchical carbon nanotube/carbon fibre/polyethylene (CNT/CF/PE) composites were fabricated via the conventional twin-screw extrusion technique. For this multi-component composite, 1% wt CNTs were uniformly coated onto the surface of CF by using spray coating method. The effect of CNTs and CFs as reinforcing fillers on the mechanical properties was investigated through mechanical test and Scanning Electron Microscopy (SEM) characterization. It has been found that with the content increase of CFs (i.e. 0% wt, 5% wt, 10% wt, 15% wt, 20% wt, 25% wt), both of tensile strength and tensile modulus exhibited an upward trend. Moreover, CF/PE composites with CNT coatings have higher mechanical performance than the counterparts without CNT coatings. The SEM results demonstrated that with the spray coating of CNTs onto CFs, the surface roughness of CFs was increased, thus contributing to the improvement of interfacial bonding between the reinforcement (CFs) and the matrix (PE).

Sign in / Sign up

Export Citation Format

Share Document