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Graphene Reinforced Adhesives for Improved Joint Characteristics in Large Diameter Composite Piping Open Access


Other title
Finite Element Analysis
Composite Piping
Multiscale Modeling
Atomistic Modeling
Adhesive bonding
Type of item
Degree grantor
University of Alberta
Author or creator
Parashar, Avinash
Supervisor and department
Dr Pierre Mertiny, Department of Mechanical Engineering
Examining committee member and department
Dr. Weixing Chen (Chemical and Materials Engineering)
Dr. Zihui Xia (Mechanical Engineering)
Dr. Pierre Mertiny (Mechanical Engineering)
Dr. Marwan El Rich (Civil and Environmental Engineering)
Dr. Pascal Hubert (Mechanical Engineering, Mcgill University)
Dr. John Doucette (Mechanical Engineering)
Department of Mechanical Engineering

Date accepted
Graduation date
Doctor of Philosophy
Degree level
Higher specific properties and corrosion resistance of fibre reinforced polymer (FRP) pipes make them a potential candidate for replacing metallic piping structures. This research project is concerned with adhesively bonded FRP pipe sections. The project can broadly be classified into three phases. In the first phase the effects of dimensional scaling as well as fibre architecture on adhesive bonding strength were studied. A macro analysis of adhesively bonded FRP pipe sections was conducted employing a finite element approach in conjunction with strength of materials and fracture mechanics damage criteria. Through this phase of the project the most damage-prone components within adhesively bonded FRP pipe sections were identified. The second phase of the research project was designed to investigate a suitable nanofiller material for the reinforcement of the weakest joint component, i.e. the adhesive bondline. Due to its superior mechanical properties and relatively low cost, graphene was considered as the nanofiller. Phase two of the project was further extended to include a novel modelling technique for characterizing graphene at the atomistic level. The third and final phase of the project dealt with the overall impact of graphene nanofiller on the adhesive material. A multiscale model was developed to investigate fracture toughening and stability effects with the aim of producing a nanocomposite with improved mechanical properties.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Avinash Parashar, Pierre Mertiny. (2012) ,Multiscale model to study fracture toughening in graphene/polymer nanocomposites, International Journal of Fracture, 10.1007/s10704-012-9779-y.Avinash Parashar, Pierre Mertiny. (2012), Failure mechanism in adhesively bonded FRP pipe sections with different fibre architecture, Composite Part B,10.1016/j.compositesb.2012.10.041.Avinash Parashar, Pierre Mertiny. (2012), Multiscale model to investigate the effect of graphene on the fracture characteristics of graphene/polymer nanocomposite, Nanoscale research letters. 7, 595.Avinash Parashar, Pierre Mertiny. (2012), Representative volume element to estimate buckling behavior of graphene/polymer nanocomposite. Nanoscale research letters.7, 515.Avinash Parashar, Pierre Mertiny. (2012), Effect of FRP pipe scaling on its adhesive bonding strength. Journal of Adhesion. 88,866-880.Avinash Parashar, Pierre Mertiny. (2012), Study of mode I fracture of graphene sheets using atomistic based finite element modeling and virtual crack closure technique. International Journal of Fracture. 176,119-126.Avinash Parashar, Pierre Mertiny.(2012), Adhesively bondedcomposite tubular joints: Review. International Journal of Adhesion and Adhesives. 38, 58-68.

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