Optically transparent continuous glass fibre-reinforced epoxy matrix composite: fabrication, optical and mechanical properties

2002 ◽  
Vol 62 (15) ◽  
pp. 2043-2052 ◽  
Author(s):  
H Iba
Keyword(s):  
Mechanical Properties ◽  
Matrix Composite ◽  
Glass Fibre ◽  
Epoxy Matrix ◽  
Continuous Glass ◽  
Composite Fabrication ◽  
Optically Transparent ◽  
Glass Fibre Reinforced ◽  
Epoxy Matrix Composite ◽  
Optical And Mechanical Properties

scholarly journals Self-Sensing Polymer Composite: White-Light-Illuminated Reinforcing Fibreglass Bundle for Deformation Monitoring

Sensors ◽  
2019 ◽  
Vol 19 (7) ◽  
pp. 1745 ◽  
Author(s):  
Gergely Hegedus ◽  
Tamas Sarkadi ◽  
Tibor Czigany
Keyword(s):  
Polymer Composite ◽  
Glass Fibre ◽  
White Light ◽  
Composite Structure ◽  
Epoxy Matrix ◽  
Fibre Bundle ◽  
Tensile Loading ◽  
Deformation Monitoring ◽  
Continuous Glass ◽  
Glass Fibre Reinforced

The goal of our research was to develop a continuous glass fibre-reinforced epoxy matrix self-sensing composite. A fibre bundle arbitrarily chosen from the reinforcing glass fabric in the composite was prepared to guide white light. The power of the light transmitted by the fibres changes as a result of tensile loading. In our research, we show that a selected fibre bundle even without any special preparation can be used as a sensor to detect deformation even before the composite structure is damaged (before fibre breaking).

Production and Properties of Glass Fibre-Reinforced Polymer Composites with Nanoparticle Modified Epoxy Matrix

2005 ◽  
Vol 901 ◽  
Author(s):  
Malte H.G. Wichmann ◽  
Florian H. Gojny ◽  
Jan Sumfleth ◽  
Bodo Fiedler ◽  
Karl Schulte
Keyword(s):  
Mechanical Properties ◽  
Glass Fibre ◽  
Epoxy Matrix ◽  
Composite Structures ◽  
Mechanical Performance ◽  
High Potential ◽  
Fatigue Properties ◽  
Ongoing Research ◽  
Volume Fractions ◽  
Glass Fibre Reinforced

AbstractIncreasing the mechanical performance, e.g. strength, toughness and fatigue properties of composites is the objective of many ongoing research projects. Nanoparticles, e.g. carbon nanotubes (CNTs) and fumed silica provide a high potential for the reinforcement of polymers. Their size in the nanometre regime make them suitable candidates for the reinforcement of fibre reinforced polymers, as they may penetrate the reinforcing fibre-network without disturbing the fibre-arrangement.In this work, glass fibre-reinforced epoxy composites with nanoparticle modified matrix systems were produced and investigated. GFRPs containing different volume fractions of the nanofillers were produced via resin transfer moulding. Matrix dominated mechanical properties of the GFRP laminates could be improved by the incorporation of nanoparticles. The addition of only 0.3 wt.% CNTs to the epoxy matrix increased the interlaminar shear strength from 33.4 to 38.7 MPa (+16%). Furthermore, the application of electrically conductive nanoparticles enables the production of conductive nanocomposites. This offers a high potential for antistatic applications and the implementation of functional properties in the composite structures. The effects of different filler types and volume fractions on the electrical properties of the GFRPs were investigated. GFRPs containing 0.3 wt.% of CNTs, for example, exhibit an anisotropic electrical conductivity. Furthermore, an electrical field was applied to the composites during curing. The effects on the resulting electrical and mechanical properties are discussed.

3D printed continuous glass fibre-reinforced polyamide composites: Fabrication and mechanical characterisation

2021 ◽  
pp. 073168442110517
Author(s):  
El Hadi Saidane ◽  
Gilles Arnold ◽  
Pascal Louis ◽  
Marie-José Pac
Keyword(s):  
Mechanical Properties ◽  
Glass Fibre ◽  
Mechanical Behaviour ◽  
Volume Content ◽  
Fibre Volume ◽  
Tensile Behaviour ◽  
Fused Filament Fabrication ◽  
Continuous Glass ◽  
Glass Fibre Reinforced ◽  
3D Printed

Fused Filament Fabrication is a very common additive manufacturing technology and several manufacturers have developed commercial 3D-printers that enable the use of fibre-reinforced filaments in order to improve the mechanical properties of the printed parts. The obtained material is a composite that exhibits complex mechanical properties. The aim of this study is to characterize the mechanical behaviour of 3D-printed continuous glass fibre-reinforced polyamide composites. In a first step, we focus on the reinforced filament: the heterogeneity of its microstructure is evidenced as well as its brittle elastic tensile behaviour. In a second step, parts of different fibre orientations and fibre volume contents are manufactured using a Mark Two 3D-printer (MarkForged®), their microstructure is analysed and tensile, flexural and short beam bending tests are performed. As expected, the results show a significant influence of fibre volume content and fibre orientation. Standard homogenization methods are used to compare the predicted mechanical behaviour to the experimental results. Regarding the elastic stiffness, a good correlation is observed when the material is loaded in the direction of the fibres. Regarding the tensile strength, the results show that no benefit is obtained above a fibre volume content of about 11%. These results highlight the importance of choosing an optimised stacking sequence prior to the printing process, in order to obtain composites with the desired mechanical properties. The mechanical results are analysed in the light of Scanning Electron Microscopy observations of specimen cross-sections before and after testing.

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