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Chiemela Victor Amaechi

Bio: Chiemela Victor Amaechi is an academic researcher from Lancaster University. The author has contributed to research in topics: Submarine pipeline & Marine engineering. The author has an hindex of 4, co-authored 10 publications receiving 60 citations. Previous affiliations of Chiemela Victor Amaechi include Fylde College, Lancaster University.

Papers
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Journal ArticleDOI
TL;DR: In this article, the effects of hose hydrodynamic loads and flow angles on the structural behavior of the hoses, including bending moments, effective tension and minimum bend radius, were investigated.

50 citations

Journal ArticleDOI
TL;DR: In this article, numerical stress analysis of composite offshore risers for deep water applications is carried out using ANSYS ACP for the finite element modelling of the composite riser for six load cases.

44 citations

20 Jan 2020
TL;DR: In this paper, the economic aspects of recycling both GFRP and CFRP composites are discussed and the state-of-the-art on the production method of recycling the fibre reinforced polymer composites is also discussed.
Abstract: There are some economic factors that affect recycling of fibre reinforced polymer composites. These also include the type of polymer, their applications and the method of processes. In addition, the disposal and collection of these fibre reinforced polymer composite wastes is also considered. There is a relationship between the end of life of fibre reinforced polymer composite and their manufacturing processes. Thus, this discussion expatiates on the economic aspects of recycling both GFRP and CFRP composites. It is also important to note that the state-of-the-art on the production method of recycling the fibre reinforced polymer composites is also discussed. The focus is on the influence of the global composite market, the quality of the reinforced FRP composites and the commercial flexibility. Since chemical processes produce good quality fibres, unlike mechanical processes that produces bad quality fibres, we will look at some applications of fibre reinforced polymer composites.

28 citations

Journal ArticleDOI
TL;DR: In this paper, a combined image analysis technique using computed microtomography (micro-CT) and scanning electron microscopy (SEM) is proposed to study the microstructures, damage and failure of a hybrid unidirectional/woven composite laminate (HUWCL).

27 citations

Journal ArticleDOI
TL;DR: In this paper , numerical investigations on a free-floating Catenary Anchor Leg Moorings (CALM) buoy were carried out and an Orcaflex-coupled model of the CALM buoy system with submarine hoses in Lazy-S configuration was presented.

26 citations


Cited by
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Journal ArticleDOI
TL;DR: A critical review of the current technologies for recovering carbon fibres and/or the polymers and remanufacturing carbon fiber reinforced polymer matrix composites (CFRP) is presented in this article.
Abstract: The rapid rise in the applications of carbon fibre reinforced polymer matrix composites (CFRPs) is creating a waste recycling challenge. The use of high-performance thermoset polymers as the matrix makes the recovery of the fibres and the resins extremely difficult. Implementation of a circular economy that can eliminate waste and re-use resources warrants the use of efficient processes to recycle end-of-life CFRP components and manufacturing wastes. To this end, herein we present a critical review of the current technologies for recovering carbon fibres and/or the polymers and re-manufacturing CFRPs. New research opportunities in developing new biodegradable thermosets and thermoplastic matrices are also outlined together with more radical recycling strategies for the future.

283 citations

Journal ArticleDOI
01 Jan 2021
TL;DR: In this paper, the authors present an overview of the available recycling technologies for fiber reinforced composites of both low and high Technology Readiness Levels (TRL) for wind turbines.
Abstract: Recently, significant events took place that added immensely to the sociotechnical pressure for developing sustainable composite recycling solutions, namely (1) a ban on composite landfilling in Germany in 2009, (2) the first major wave of composite wind turbines reaching their End-of-Life (EoL) and being decommissioned in 2019–2020, (3) the acceleration of aircraft decommissioning due to the COVID-19 pandemic, and (4) the increase of composites in mass production cars, thanks to the development of high volume technologies based on thermoplastic composites. Such sociotechnical pressure will only grow in the upcoming decade of 2020s as other countries are to follow Germany by limiting and banning landfill options, and by the ever-growing number of expired composites EoL waste. The recycling of fiber reinforced composite materials will therefore play an important role in the future, in particular for the wind energy, but also for aerospace, automotive, construction and marine sectors to reduce environmental impacts and to meet the demand. The scope of this manuscript is a clear and condensed yet full state-of-the-art overview of the available recycling technologies for fiber reinforced composites of both low and high Technology Readiness Levels (TRL). TRL is a framework that has been used in many variations across industries to provide a measurement of technology maturity from idea generation (basic principles) to commercialization. In other words, this work should be treated as a technology review providing guidelines for the sustainable development of the industry that will benefit the society. The authors propose that one of the key aspects for the development of sustainable recycling technology is to identify the optimal recycling methods for different types of fiber reinforced composites. Why is that the case can be answered with a simple price comparison of E-glass fibers (~2 $/kg) versus a typical carbon fiber on the market (~20 $/kg)—which of the two is more valuable to recover? However, the answer is more complicated than that—the glass fiber constitutes about 90% of the modern reinforcement market, and it is clear that different technologies are needed. Therefore, this work aims to provide clear guidelines for economically and environmentally sustainable End-of-Life (EoL) solutions and development of the fiber reinforced composite material recycling.

106 citations

Journal ArticleDOI
TL;DR: In this article, the effects of hose hydrodynamic loads and flow angles on the structural behavior of the hoses, including bending moments, effective tension and minimum bend radius, were investigated.

50 citations

Journal ArticleDOI
TL;DR: In this article, numerical stress analysis of composite offshore risers for deep water applications is carried out using ANSYS ACP for the finite element modelling of the composite riser for six load cases.

44 citations

Journal ArticleDOI
TL;DR: In this paper, a review outlines recent advances of the existing methods to recycle cumulative composite wastes, still with many unresolved problems and issues, with emphasis on carbon fiber recovery and understanding their retained properties.
Abstract: Carbon fiber reinforced polymers (CFRPs), with a demand expected to reach 194 ktons by 2022 and a global market increase to $48.7 billion are increasingly popular materials because of their ability to conjugate superior mechanical resistance and lightness, thus allowing their widespread application ranging from aerospace and wind turbines to automotive and sporting goods. A foreseeable consequence is the growth of production scraps and end-of-life composites. Considering the still high cost of the virgin carbon fiber (CF) and a CF demand expected to reach 117 ktons by 2022 (average of 30 €/kg and energetic cost of 183–286 MJ/kg), this review outlines recent advances of the existing methods to recycle cumulative composite wastes, still with many unresolved problems and issues, with emphasis on CF recovery and understanding their retained properties. Finally, a brief overview on the companies that offer carbon fiber reinforced polymer recovery services with the aim of addressing the issue of end of life is presented.

36 citations