Carbon-fiber Composite

Flexural monitoring of carbon fiber/epoxy composite by acoustic emission

Carbon / epoxy composite is one of the most useful polymer matrix composites that has special properties such as high strength-to-weight ratio, high hardness, high corrosion resistance, Resistance to nuclear radiation has high consumption in different industries such as aerospace industry. Therefor monitoring of loading of this type of composite is important. In order to determine failure mecha...

Hybrid carbon fiber composite lattice truss structures

Low Cost Carbon Fiber Technology Development for Carbon Fiber Composite Applications

Maximum 200 words) The main goals of this research program at UTSI were: 1) to produce low cost carbon fibers and 2) to develop specific carbonbased material technologies to meet current and future high performance fiber-reinforced composite needs of FTA and other organizations. UTSI has been carrying out the relevant research programs since it received the carbon fiber spinning technologies an...

Negative piezoresistivity in continuous carbon fiber epoxy-matrix composite

The negative and positive piezoresistivity in continuous carbon fiber epoxy-matrix composite has been clarified. The negative piezoresistivity associated with the increase of the through-thickness resistivity upon longitudinal tension and decrease in the throughthickness resistivity upon longitudinal compression is practically attractive for strain sensing and is attributed to the decrease in t...

Optical fiber ultrasound transmitter with electrospun carbon nanotube-polymer composite

All-optical ultrasound transducers are promising for imaging applications in minimally invasive surgery. In these devices, ultrasound is transmitted and received through laser modulation, and they can be readily miniaturized using optical fibers for light delivery. Here, we report optical ultrasound transmitters fabricated by electrospinning an absorbing polymer composite directly onto the end-...