Carbon nanotube-decorated glass fibre bundles for cure self-monitoring and load self-sensing of FRPs

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Lei Xu ◽  
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Kai Wang ◽  
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M. A. S. Sweet ◽  
R. Hill

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Omar Dwidar ◽  
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Véronique Michaud ◽  
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Jan-Anders E. Månson

1988 ◽  
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B. D. Caddock ◽  
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Li Liu ◽  
Peng-Cheng Ma ◽  
Miao Xu ◽  
Shafi Ullah Khan ◽  
Jang-Kyo Kim

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Sajad Haq

2021 ◽  
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Venkata R Machavaram ◽  
Benjamin A Fernando ◽  
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Ashwini Prasad ◽  
...  

This paper reports on the production and evaluation of a new class of “Z-axis” composite sandwich panel where the core consists of a dense array of vertically-aligned, 3 mm long E-glass fibre composite “beams”. The E-glass fibre bundles were aligned using electrostatic charging. A procedure was developed to retain the orientation of the short-fibre bundles whilst they were impregnated and cured with an epoxy/amine resin system. The skins were manufactured from 4-ply carbon/epoxy prepregs with a layup sequence of (0,90)s. The out-of-plane compressive strength of these Z-axis composites was found to be 25.2 and 15.2 times greater than equivalent sandwich panels made with Nomex® and aluminium honeycomb cores respectively. Their compressive strength was found to increase in proportion to the density of the core. Buckling and fracture of the vertically-aligned Z-axis composite were the predominant failure modes observed. The shear and flexural properties of the Z-axis composites were comparable to equivalent honeycomb sandwich panels manufactured from Nomex® and aluminium honeycomb cores.


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