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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.

Recycling of composite materials, particularly renewable composites, in the offshore industry is a novel concept that is growing. It factors into the use of fibre reinforced polymer composites, its waste collection and recycling process. Thus, the disposal and collection of these fibre reinforced polymer composite wastes is also considered. The offshore industry has moved from shallow waters to deep waters and thus lighter structures are required, like composite risers. The focus is on the influence of the applicable renewable composite materials in the composite industry, 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 in the offshore industry.

Key Features •Covers particle-reinforced composites, fibre-reinforced composites and other toughening mechanisms •Analyses toughening mechanisms in a broad range of composite materials •Developments in nanotube toughened composites and toughened graphene ceramic composites are examined Description Toughening Mechanisms in Composite Materials aims to provide a comprehensive and technically detailed coverage of composites and their toughening mechanisms. Unique in its direct and comprehensive approach, the book presents fundamental knowledge on composites’ toughening mechanisms as well as a comprehensive treatment of numerical methods. This volume summarizes the current state-of-the-art and presents the most recent research outcomes in the field. It details the development of each of the techniques, beginning with basic principles, and new concepts are illustrated with examples wherever possible. Readership Professional engineers in industry and academia, research scientists, workers and students in applied mechanics and materials engineering, physicists and materials scientists.

A nonlinear finite element (NLFE) simulation using DIANA software [1] was performed in order to estimate the temperature which produced the first transverse crack at the bar surface and the corresponding tensile stress. It was also used to predict the extent and direction of the thermally induced cracking due to thermal incompatibility between the concrete and GFRP bars when the temperature increases. The NLFE results were verified by comparing the output of the proposed 2D NLFE model with experimental results. The results confirmed the influence of temperature variations on the state of stress within the GFRP reinforced concrete slabs, and the necessity for a recommended minimum concrete cover to avoid the formation of through cracks. The NLFE model generally shows good agreement with the experimental results for a concrete cover of 1.5 x bar diameter db.