Carbon fiber is a carbon material with a carbon content of more than 90%. Compared with other high-performance fibers, it has the highest specific strength and specific modulus. Therefore, it has excellent mechanical properties. In addition, carbon fiber also has excellent properties such as low density, high temperature resistance, corrosion resistance, friction resistance, electrical and thermal conductivity, electromagnetic shielding, and easy processing. Therefore, carbon fiber is widely used in various fields, and its outstanding contributions in aerospace are particularly noticed.
The application of carbon fiber composite materials to fighter fuselage, main wing, vertical tail, flat tail, skin and other parts can play a very obvious lightening effect.
When customizing carbon fiber fuselage parts, according to the final data, the front fuselage section using carbon fiber composite material structure is 31.5% lighter than the metal structure, the parts are reduced by 61.5%, the fasteners are reduced by 61.3%, and the fatigue resistance is reduced. The corrosion resistance is greatly improved.
In the field of civilian products, 25% of the parts by weight of the world’s largest aircraft A380 are made of composite materials, of which 22% are made of carbon fiber reinforced composite materials, and the remaining 3% are made of GLARE fiber-metal plate (aluminum Alloy and glass fiber super-hybrid composite material layer structure).
These components made of carbon fiber reinforced composite materials include: speed brakes, vertical and horizontal stabilizers (used as fuel tanks), elevators, rudders, landing gear doors, fairings, vertical tail boxes, rudders, elevators, ailerons, etc. , Due to the significant weight reduction of carbon fiber composite materials, greatly reducing fuel consumption and emissions; and will not be damaged due to fatigue or external corrosion during use.
Carbon fiber composite materials have long been applied to artificial satellite structures, solar panels and antennas because of their advantages of light weight, high rigidity, high strength, dimensional stability, and good thermal conductivity. Nowadays, most of the unfolding solar cells on artificial satellites are made of carbon fiber composite materials, and some of the more critical components of the space station and the space shuttle system are also made of carbon fiber composite materials. Our country went from “Shenzhou No. 1” to “Shenzhou No. 6” ascending to heaven six times in more than eight years.
With the deepening of carbon fiber technology research, the output of carbon fiber will continue to increase, the quality will continue to improve, and the overall price will steadily drop. There will be more and more high-performance and high-quality carbon fiber composite materials that will be applied to the aviation industry and make great contributions to human aerospace industry.
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