Carbon-fiber-reinforced polymers (CFRP), being conductive, are capable of supporting cathodic oxygen reduction reactions (ORR) and thus promote galvanic corrosion when coupled to many metallic materials. Hence, understanding processes at carbon surfaces is critical developing new strategies for the protection multi-material assemblies. In present work, electrochemical responses CFRP, glassy car...

Honeycombs are used ubiquitously in engineering applications as they have excellent out-of-plane strength and stiffness properties with respect to weight. This paper considers the of honeycombs in-plane direction, a direction that is significantly weaker less stiff than direction. We assess how judiciously locating structural hierarchy within honeycomb array can be geometric design principle di...

In this present study, experimental work was conducted to study the effectiveness of newly innovated steel-CFRP composite (CFRP laminates sandwiched between two steel strips) as stirrups. A total numbers of eight concrete beams were tested under four point loads. Each beam measured 1600 mm long, 160mm width and 240 mm depth. The beams were reinforced with different shear reinforcements; one wit...

Aircraft skins manufactured from carbon fibre reinforced plastic (CFRP) can simultaneously support structural load and act as antennas. This offers the potential for disproportionately large antenna elements and arrays, and thus enhanced aircraft capability. The efficient design of such structures requires that the link between CFRP microstructure and electromagnetic performance be established....

This paper presents the study of strengthening R/C beams with large circular and square opening located at flexure zone by Carbon Fiber Reinforced Polymer (CFRP) laminates. A total of five beams were tested to failure under four point loading to investigate the structural behavior including crack patterns, failure mode, ultimate load and load deflection behaviour. Test results show that large o...

Strengthening of reinforced concrete beams using externally bonded CFRP laminate is the most popular choice. However, premature end peeling of CFRP laminate has been shown to be the main weakness of this method. Development of high shear and normal stresses at the end of strengthening laminate is the key reason to cause end peeling which is not preventable by conventional anchoring system. This...

Carbon-fiber reinforced polymer (CFRP) composites are replacing metal alloys in aerospace structures, but they can be vulnerable to lightning strike damage if not adequately protected due the poor electrical conductivity of polymeric matrix. In present work, improve CFRP, two electrically conductive epoxy formulations were developed via addition 0.5 wt% graphene nanoplatelets (GNPs) and a hybri...

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...

This paper presents a comprehensive overview of state-of the art nondestructive testing (NDT) methods specifically applied to carbon fiber reinformed polymer (CFRP) composites. The intent this survey is provide valuable guidance and insights researchers practitioners encompass in arena NDT for CFRP Each method carefully examined, highlighting its principles, advantages, limitations, potential a...