Comparison Of Mechanical Properties Between Carbon Fiber And Commonly Used Structural Materials

Carbon fiber is a high-performance structural material. It has the reputation of “the king of prototype materials” and “black gold”. It has been used in many fields. Carbon fiber is fibrous, but its mechanical properties are very outstanding. Let’s take a look at this article. Comparison of mechanical properties between carbon fiber materials and other commonly used structural materials.Carbon fiber composite materials are composed of carbon fiber and resin matrix. They have low density, high strength, impact resistance, small thermal expansion coefficient and strong designability. They can replace other materials to make structural parts. So carbon fiber structural parts are different from other material structural parts. What are the differences in performance?

It can be seen that the mechanical properties of carbon fiber materials are better than most structural materials, and the higher the grade of carbon fiber materials, the more significant the performance. At the same time, carbon fiber materials also have a series of advantages such as corrosion resistance, high temperature resistance, and aging resistance. applications in more and more fields.

Specific Strength To Modulus

Currently, carbon fiber resin-based composite materials are mostly used on the market. The most significant feature of this material is its light weight and high strength. Its density is 1.6g/cm³, and its specific strength is 5 times that of steel and 4 times that of aluminum alloy; The specific modulus is four times higher than that of aluminum alloy and steel. Such excellent mechanical properties allow carbon fiber composite materials to have better application space in structural parts and other components.

Fatigue Resistance

The fatigue strength limit of traditional metal materials is 30% to 50% of its tensile strength, while the fatigue strength limit of carbon fiber composite materials is 70% to 80% of its own tensile strength, which allows carbon fiber structural parts to survive long-term load changes. Maintaining good mechanical properties, the service life is much longer than that of traditional material structural parts.

Damping And Shock Absorption

In addition to being related to the shape, the natural frequency of the stiffened structure is also proportional to the square root of the specific mode star of the structural material. It can be seen from the analysis of the comparative modulus. Carbon fiber composite materials have a higher natural frequency than metal, and their interfaces have a greater ability to absorb vibrations, so the material has higher damping. These characteristics are conducive to improving the seismic performance of composite structures.

Damage Safety

In actual situations, the destruction of carbon fiber composite materials needs to go through a series of processes such as matrix damage, cracking, interface debonding, fiber fracture, etc. After a few carbon fibers break, the load will be dispersed to other intact fibers through the transmission of the matrix, and will not In the case of sudden rupture of structural metal parts, safety is better, but the damage of metal materials continues to increase after rupture, and the load cannot be evenly distributed.

It can be seen that the mechanical properties of carbon fiber materials are better than most structural materials, and the higher the grade of carbon fiber materials, the more significant the performance.

At the same time, carbon fiber materials also have a series of advantages such as corrosion resistance, high temperature resistance, and aging resistance. applications in more and more fields.

China Be-cu Prototype Material Technology Co., Ltd. has a production workshop of more than 5,000 square meters, with large-scale hot presses, autoclaves, hydraulic forming tables, CNC high-speed milling machines and other large-scale equipment. The cnc machining china company’s products are all well-known in Taiwan and Japan. Brand raw material production, quality assurance.

ISO 9001 certified. BE-CU Prototype Offering CNC machining carbon fiber and other manufacturing services for carbon fiber marterial. Various capabilities include notching, labeling, drilling carbon fiber, grinding, laser cutting carbon fiber, finishing, plating, marking, CNC milling carbon fiber and turning carbon fiber.We stock high quality 3k carbon fiber sheet in a variety of thickness, types and finish. Its a great material used in applications where light weight and strength are needed such as drones. Unlike other workshops, we have no min order and are often filling orders with a single part. We also don’t make you pay for the full sheet and you only get charged for what is used. With a large selection of material, you should find everything you need to make your project come to life. We are also able to handle larger production runs and provide a competitive pricing. If we don’t have the material or finish you require, we are more the willing to look at bringing it in for you.

What Is Carbon Fiber?Carbon fiber is made of polyacrylonitrile (PAN) (or pitch, viscose) and other organic fibers by carbonization (removal of most elements except carbon) by pyrolysis method under inert gas at high temperature above 1,000 °C. Inorganic polymer fibers with a carbon content of more than 90%.