Adhesive bonding of discontinuous carbon fibre composites: an experimental investigation

Nicholls, Tristan Kit (2013) Adhesive bonding of discontinuous carbon fibre composites: an experimental investigation. PhD thesis, University of Nottingham.

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The excellent specific stiffness and strength of carbon fibre reinforced polymer composites means that the automotive sector has been investigating methods of implementing these materials into structurally demanding applications. The work detailed within this thesis supports ongoing research at the University of Nottingham into the automated manufacture of discontinuous carbon fibre reinforced polymer composite materials. Advances in the automation of composites manufacturing has meant that methods to effectively join these materials is required. This work provides a fundamental understanding of the differences that result from the adhesive bonding of a discontinuous fibre composite (DFC) compared to conventional fibre reinforced composite materials.

The main objective of the project was to characterise the behaviour of adhesively bonded DFC adherends. Using a single lap shear joint geometry, an optimised fibre architecture and joint geometry was identified with a 2-part low temperature curing epoxy adhesive being characterised for industrial application. To further improve the performance of the DFC substrates, a fibre alignment technique was implemented that achieved properties comparable to those of more traditional non-crimp fabric composites. From the experimental investigations conducted, the use of discontinuous carbon fibre reinforced composites in bonded assemblies shows promise with the potential for use in structural applications.

Item Type: Thesis (University of Nottingham only) (PhD)
Supervisors: Johnson, M.
Warrior, N.A.
Keywords: Adhesive bonding, DCFP, Discontinuous carbon fibre, Composite materials, DCF, Adhesive joining, Stacking sequence, Fibre architecture,
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculties/Schools: UK Campuses > Faculty of Engineering > Department of Mechanical, Materials and Manufacturing Engineering
UK Campuses > Faculty of Engineering
Item ID: 13773
Depositing User: EP, Services
Date Deposited: 19 Feb 2014 12:49
Last Modified: 17 Dec 2017 17:38

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