Mechanical properties of reactively flame retarded cyanate ester/epoxy resin blends and their carbon fibre reinforced composites

Composites are materials formed by the combination of two or more components that acquire better properties than the ones obtained by each component on its own. Composites have been widely used in the industry due to its light weight and good mechanical properties. To improve these properties several layers of reinforced material (e.g., carbon fibre) are overlapped which produce an increase in the fibre consumption. In this sense Tailored Fibre Placement (TFP) embroidery can offer good opportunity to reduce the consumption of reinforced fibre while improving the mechanical properties due to the alignment of the fibres in the effort direction. This study analyzes the performance of carbon fibre reinforced composites with Polyester resin made with TFP embroidery technology against flexural strength efforts and without using plain woven fabrics to demonstrate that the use of reinforcement fabrics in composites can be optimized by a curved alignment of the fibers. Two different structures were embroidered with TFP technology, one simulating a woven fabric with straight unidirectional alignment of fibres in horizontal and vertical direction, and a second structure made with curvilinear alignment of carbon fibers. After the study of the flexural mechanical properties an improvement of 18% was obtained in maximum flexural strength.

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Fabrication and Mechanical Characterization of Glass and Carbon Fibre Reinforced Composite’s Used for Marine Applications

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i4.5.20052 ◽

2018 ◽

Vol 7 (4.5) ◽

pp. 228

Author(s):

D. Sarath Chandra ◽

Dr. K.Vijaya Kumar Reddy ◽

Dr. Omprakash Hebbal

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

Impact Strength ◽

Carbon Fibre ◽

Reinforced Composites ◽

Fiber Reinforced ◽

High Tensile Strength ◽

Marine Applications ◽

Fibre Reinforced Composites ◽

Strength And Toughness

The composite materials are replacing the traditional materials, because of its superior properties such as high tensile strength, low thermal expansion, high strength to weight ratio. The developments of new materials are on the anvil and are growing day by day. Fiber composites such as Glass-Fiber Reinforced Polymers (GFRP) composites and Carbon-Fiber Reinforced Composites (CFRP) became more attractive due to their better properties for marine applications. In this paper, GFRP, CFRP and Hybrid composites are developed and their mechanical properties such as Hardness, tensile strength, compression strength, impact strength, toughness are evaluated. The study used to compare the effect volumetric fraction of fibers in order to improve strength and toughness, this done by using two types of fibers E-glass and carbon & two types of resins epoxy ( AralditeLY556 and Aradur HY951 ) and vinyl ester. In this experimental study, we found that high tensile strength, high specific strength, hardness and low density are obtained with carbon fibre reinforced composites, but high impact strength and toughness are obtained with glass fibre reinforced composites. Finally incorporate the result and try to find alternatives composites using for marine applications and obtain the best mechanical properties

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Extrusion Freeform Fabrication of Chopped-Fibre Reinforced Composites

High Performance Polymers ◽

10.1088/0954-0083/9/4/008 ◽

1997 ◽

Vol 9 (4) ◽

pp. 449-456 ◽

Cited By ~ 32

Author(s):

Paul Calvert ◽

Tung Liang Lin ◽

Hogan Martin

Keyword(s):

Carbon Fibre ◽

Epoxy Resin ◽

Elastic Properties ◽

Fibre Orientation ◽

Three Dimensional ◽

Reinforced Composites ◽

Freeform Fabrication ◽

Large Influence ◽

Fibre Reinforced Composites ◽

Extrusion Freeform Fabrication

Extrusion freeform fabrication is a process whereby three-dimensional parts are built by writing successive layers of material onto a support. In this case, two types of epoxy resin have been formed into test bars containing varying fractions of chopped carbon fibre of various lengths. It is shown that the fibre orientation follows the writing direction and has a large influence on the directional elastic properties of the composite. Test bars have also been formed containing multiple layers of reinforced and unreinforced resin to demonstrate the flexibility of this method.

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Dynamic mechanical properties of PTFE based short carbon fibre reinforced composites: experiment and artificial neural network prediction

Composites Science and Technology ◽

10.1016/s0266-3538(02)00036-2 ◽

2002 ◽

Vol 62 (7-8) ◽

pp. 1001-1009 ◽

Cited By ~ 62

Author(s):

Z. Zhang ◽

P. Klein ◽

K. Friedrich

Keyword(s):

Neural Network ◽

Mechanical Properties ◽

Artificial Neural Network ◽

Carbon Fibre ◽

Dynamic Mechanical Properties ◽

Reinforced Composites ◽

Neural Network Prediction ◽

Network Prediction ◽

Short Carbon ◽

Fibre Reinforced Composites

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Effect of Different Types of Electrospun Polyamide 6 Nanofibres on the Mechanical Properties of Carbon Fibre/Epoxy Composites

Polymers ◽

10.3390/polym10111190 ◽

2018 ◽

Vol 10 (11) ◽

pp. 1190 ◽

Cited By ~ 5

Author(s):

Cristina Monteserín ◽

Miren Blanco ◽

Nieves Murillo ◽

Ana Pérez-Márquez ◽

Jon Maudes ◽

...

Keyword(s):

Mechanical Properties ◽

Carbon Fibre ◽

Polyamide 6 ◽

Epoxy Composites ◽

Reinforced Composites ◽

Brittle Matrix ◽

Matrix Fracture ◽

Different Types ◽

Fibre Reinforced Composites

Delamination and brittle matrix fracture have long since been the biggest problems in fibre-reinforced composites. Recently, the incorporation of electrospun nanofibre veils has been shown to be an effective method for improving the mechanical properties of these composites, without causing process problems and negatively affecting other mechanical properties. Thus, these nanofibres have the potential to be used as thickness-reinforcing materials in composites. This paper investigates the effect of incorporating standalone electrospun nanofibre veils made of two different types of polyamide 6 (PA6) on the mechanical properties of carbon fibre/epoxy composites. The influence of positioning the electrospun veils at different interlaminar positions of the laminate has also been investigated.

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Hierarchical framework for quantifying multiscale structures of two-dimensional woven carbon fibre-reinforced composites considering geometric variability

Journal of Industrial Textiles ◽

10.1177/1528083717747333 ◽

2017 ◽

Vol 48 (4) ◽

pp. 802-824 ◽

Cited By ~ 3

Author(s):

Chao Zhu ◽

Ping Zhu ◽

Zhao Liu ◽

Wei Tao ◽

Wei Chen

Keyword(s):

Mechanical Properties ◽

Carbon Fibre ◽

Random Sequence ◽

Random Perturbation ◽

Two Dimensional ◽

Reinforced Composites ◽

Modelling Framework ◽

Random Microstructure ◽

Multiscale Structures ◽

Fibre Reinforced Composites

The processing and mechanical properties of two-dimensional woven carbon fibre-reinforced composites depend directly on the internal geometrical architecture, which presents typical multiscale nature, while the multiscale structures possess inevitable geometric variabilities during the manufacturing process. This work presents a stochastic multiscale geometric modelling framework containing two developed algorithms to facilitate reconstructing statistically equivalent structures on microscale and mesoscale of two-dimensional woven carbon fibre-reinforced composite considering internal geometric variability. The sequential random perturbation algorithm is proposed to realize the random distribution nature of fibres inside yarns on microscale by sequential smart movements of initial regular distributed fibres. Then, an algorithm based on Gaussian random sequence is developed to characterize the internal variabilities of yarn path and shape on mesoscale via reconstructing correlated stochastic deviations along yarns. The proposed modelling framework effectively reconstructs the geometric models of random microstructure and mesostructure, which is convenient to be implemented into computational micromechanical analysis on both scales, serving as the foundation of the numerical calculation of the multiscale processing and mechanical properties of the studied composite.

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