A review of the present and future utilisation of FRP composites in the civil infrastructure with reference to their important in-service properties

In the present study, the fracture energy of hybrid carbon fiber reinforced polymers was investigated. The composites were modified by the addition of multi-walled carbon nanotubes into the matrix material. The interlaminar fracture properties under Mode I and Mode II remote loading were studied as a function of the carbon nanotube content in the matrix. With the addition of carbon nanotubes in the epoxy matrix, a significant increase in the load bearing ability as well as in the fracture energy was observed, for both Mode I and Mode II tests. It is speculated that carbon nanotubes due to their large aspect ratio have a significant toughening effect since extra energy is needed in order to pull them out from the matrix and start the crack propagation following a kinking out pattern at nanoscale.

Enhanced Fracture Properties of Carbon Reinforced Composites by the Addition of Multi-Wall Carbon Nanotubes

Properties and applications of FRP in strengthening RC structures: A review

Seismic behaviour of deficient RC frames strengthened with CFRP composites

This study investigates the shear behavior of concrete beams reinforced with fiber-reinforced polymer (FRP) reinforcement. Six beams were subjected to two successive phases of testing. Half of the beams were reinforced in flexure with conventional steel reinforcement, while the other half were reinforced with glass fiber bars. Different shear span to depth ratios, ranging from 1.1 to 3.3, were analyzed in order to study the variation in the shear behavior of beams characterized by different types of shear failure. No shear reinforcement was provided in the first phase of testing, while in the second phase, just enough glass and carbon shear reinforcement was provided to enable failure due to shear. The results of these tests are presented and compared to predictions according to the design recommendations proposed by the ACI and the Institution of Structural Engineers, U.K. The results of this study show that these approaches, which are based on modifications of equations derived for steel reinforcement, ...

Shear Resistance of FRP RC Beams: Experimental Study

Part 1: fracture and failure mechanisms composite strength evaluation debonding and delamination failure mechanisms of fibre reinforced composites fracture toughness and fatigue crack growth failure and notch size effect constant and variable amplitude fatigue damage fatigue damage tolerant design of metal matrix composites. Part 2 Case studies: aerospace engineering construction engineering medical engineering.

C. A. Rodopoulos

Papers

Failure Analysis of Industrial Composite Materials

Problems of fracture mechanics and fatigue : a solution guide