CFRP composites have unique application qualities such as high resistance and durability to environmental conditions, having relatively low weight and easy to install in strengthening concrete structure elements. The brackets should be strengthen sufficiently if they are not calculated and implemented well. Application of the CFRP is one of the methods for such purposes. The study involves usin...

Abstract Automated fibre layup techniques are often applied for the production of complex structural components. In order to ensure a sufficient component quality, subsequent visual inspection is necessary, especially in aerospace industry. The use automated optical systems can reduce effort by up 50 %. Laser line scan sensors, which capture topology surface, particularly advantageous this purp...

This paper studies the efficiency of applying an engineered cementitious composite (ECC) layer to tensile surface (RC) beams that were previously strengthened using externally bonded (EB) carbon fiber-reinforced polymer (CFRP) laminates. One control and ten RC produced tested utilizing a four-point loading regime. For beams, two kept only CFRP, additional ECC layers added rest beams. The CFRP w...

This study investigates the effect of multi-walled carbon nanotubes (MWCNT) on high strain rate properties fiber reinforced polymer (CFRP) fabric impregnated with shear thickening fluids (STF). Three GFRP-STF and twelve GFRP-MWCNT/STF composite specimens were conducted using a split Hopkinson pressure bar (SHPB). Spherical silica nanoparticles (20.0 wt%) polyethylene glycol used to prepare sili...

Currently Carbon Fiber Reinforced Polymer (CFRP) is widely used in the aircraft and automotive industries, due to its superior mechanical properties such as lightweight, high resistance which are very good for corrosion resistance. The components made of CFRP composites have their constraints, namely phenomenon delamination when composite material drilled. To analyze this phenomenon, it necessa...

The damping in a carbon fiber reinforced plastic (CFRP) laminate is greater than that which occurs in most metallic materials. In the supercritical regime, the damping can trigger unstable whirl oscillations, which can have catastrophic effects. The vibrations occurring in a supercritical composite drive shaft are investigated here in order to predict instabilities of this kind. A simply suppor...

Carbon fibre-reinforced polymers (CFRP), thanks to their properties such as lightness, resistance corrosion and fatigue, are emerging composite materials in the aeronautic fields, guaranteeing reduce weight costs by maintaining high performances terms of strength security. For preventing fluid damage freezing, applications, CFRP parts need be coated painting. However, paint/coating adhesion on ...

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...

Abstract: The performance of corroded reinforced concrete (RC) beams strengthened with externally bonded carbon fiber reinforced polymer (CFRP) materials may be affected by a weak interface caused either by defective bonding between the new and old concrete in the case of cover replacement or by expansive cracks in the case of direct application. To investigate this effect, thirteen strengthene...