In order to study the influence of machining methods and parameters on surface quality carbon fiber reinforced composites (CFRP) in cutting process, finite element simulation model ultrasonic-assisted CFRP was established, results show that introduction ultrasonic reduces damage degree tool attached torsional vibration effect is most significant. The torsion longitudinal tests disc were carried...

Abstract The deformation and reconstruction of the composite propeller under static load in laboratory is studied so as to provide basic research for underwater deformed propeller. fiber Bragg grating (FBG) sensor proposed be used strain monitoring carbon reinforced polymer (CFRP) propeller, a algorithm structural curvature CFRP based on information presented. verified by using variable-thickne...

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...

Carbon-fiber-reinforced epoxy-matrix composite (CFRP) laminates with thin plies have strong damage-resistance properties compared standard prepregs. The static and fatigue tensile fracture behavior of cross-ply CFRP should be further studied to establish the applicability thin-ply prepregs for industrial structures. In this study, cross-ply, high-strength polyacrylonitrile (PAN)-based carbon-fi...

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...

The use of carbon fiber reinforced plastic (CFRP) is increasing in engineering applications such as aerospace, automobiles, defense, and construction. Excellent strength-to-weight ratio, high impact toughness, corrosion resistance make CFRP highly suitable for aerospace applications. Curing temperature, curing time, autoclave pressure are among the most important parameters affecting properties...

Manufacturing carbon-fibre reinforced polymer (CFRP) composites via different techniques often leads to contrasting surface topographies. Such differences can affect any subsequent pre-treatments that are performed and these ultimately joint strength. In the present work, CFRP adherends made using compression moulding or autoclaving were investigated. Pre-treatment of acetone cleaning, plasma t...

Crack propagation could be catastrophic, and it needs the urgent attention of user. A cracked structure to repaired or replaced at earliest. Costs associated with complete replacement part paves way for former option, especially in aircraft industry. Composite materials have good directional properties strength toughness compared conventional like metals, alloys plastics. In this study carbon f...

In this work a novel method for the characterization of porosity in carbon fiber reinforced polymers (CFRP) is presented. A visualization pipeline for the interactive exploration and visual analysis of CFRP specimens is developed to enhance the evaluation workflow for non-destructive testing (NDT) practitioners based on specified tasks. Besides quantitative porosity determination and the calcul...