This paper presents an experimental investigation of the shear performance RC beams strengthened with near surface mounted (NSM) carbon fibre reinforced polymer (CFRP) prestressed concrete prisms (PCPs). The behaviour can be affected by several design variables. In this research, effect following parameters were considered: prestress level, inclination and spacing CFRP-PCPs, material type prism...

An innovative fatigue strengthening solution for metallic structures that takes advantage of the shape memory effect an iron-based alloy (Fe-SMA) and bridging mechanism offered by bonding technique has been proposed examined. Fatigue tests on cracked steel plates with bonded carbon fiber-reinforced polymer (CFRP) nonprestressed prestressed Fe-SMA strips were conducted. The experimental results ...

this paper presents the results of analytical studies concerning the flexuralstrengthening of reinforced concrete beams by external bonding of high-strength lightweightcarbon fiber reinforced plastic (cfrp) plates to tension face of the beam. three groups of beamswere tested analytically and compared with existing experimental results. results of the numericalanalyses showed that, although addi...

Enhancing the impact resistance performance of carbon fiber-reinforced polymer (CFRP) laminates stands as a prominent research focus among various nations. Existing studies have shown tendency towards arbitrary selection inter-ply helix angle values in CFRP laminates, which is accompanied by limited number samples representing chosen angles. However, existing relatively random spiral between an...

Fiber reinforced polymer (FRP) laminates are being used as external reinforcement for strengthening concrete members. The performance of unidirectional FRP laminates is highly dependent on fiber orientation with respect to applied load direction. In the case of fabrication by manual lay-up, it is possible to have fiber plies installed with improper orientation. In this project, the degradation ...

Fiber reinforced polymer (FRP) laminates are being successfully used for strengthening of existing reinforced concrete structures. Bond of the FRP reinforcement to the concrete substrate is of critical importance for the effectiveness of the technique. In this project, flexural test specimens were prepared to address some of the factors expected to affect bond, namely, bonded length, concrete s...

As contemporary emerging materials, fiber-reinforced plastics/polymers (FRP) are widely used in aerospace automotive industries and other fields due to their high strength-to-weight ratio, stiffness-to-weight corrosion resistance, low thermal expansion properties. Drilling is the most frequently process industrial operation for polymer composite laminates, owing need joining structures. However...