Uni-directional Carbon Fiber
Unidirectional means that every fiber runs in the same direction, as suggested by the word “uni” in the name. Because of this, UD fabric has high strength in just one direction. There are no crimped, interlacing fibers in UD fabric since it is not woven. Instead, the stiffness and strength are improved by the presence of continuous fibers. The option to fine-tune the layup by adjusting a variety of performance variables is another perk. The frame of a bicycle is an excellent illustration of how UD fabric may be utilized to tailor the performance. The bottom bracket portion of the frame must be rigid so that the rider’s power can be transmitted to the wheels, while the rest of the frame may be flexible so as not to pound the rider. Using UD material, the fibers may be oriented in any direction to get the desired strength.
However, UD’s practicability is a severe shortcoming. Due to its lack of interwoven threads, UD tends to disintegrate during the layup process. After the fibers have been inserted wrongly, it may be very difficult to get them back into the right orientation. As an added complication, machining components manufactured from UD fabric often results in unexpected behavior. Loose fibers may easily draw up throughout the whole component if they occur at the points where the features were removed. When using UD material in a layup, it is common practice to include a woven material into both the first and final layers to improve machinability and component longevity. This process is standard practice for manufacturing anything from drone frames for hobbyists to rocket components for launch vehicles. Please share your thoughts on this article with us by posting a comment below.
Carbon Fiber Typical Data
| Storage Condition | Store dry at 40°-95° F (4° -35°) | |
|---|---|---|
| Shelf Life | 50 years | |
| Color | Black | |
| Primary Fiber Direction | 0° (unidirectional) | |
| Arear Weight | HM-20 unidirectional carbon fiber sheet | 200g/㎡ (5.84 oz./sq.yd.) |
| HM-23 unidirectional carbon fiber sheet | 230g/㎡ (6.72 oz./sq.yd.) | |
| HM-30 unidirectional carbon fiber sheet | 300g/㎡ (8.76 oz./sq.yd.) | |
| HM-45 unidirectional carbon fiber sheet | 450g/㎡ (13.14 oz./sq.yd.) | |
| HM-53 unidirectional carbon fiber sheet | 530g/㎡ (15.48 oz./sq.yd.) | |
| HM-60 unidirectional carbon fiber sheet | 600g/㎡ (17.52 oz./sq.yd.) |
Carbon Fiber Typical Fiber Properties
| Dry Fiber Typical Properties | |
|---|---|
| Standrad Value of Tensile Strength | 4900MPa |
| Tensile Elastic Modulus | 234500MPa |
| Elongation | 1.7% |
| Laminate Fiber Typical Properties | ||
|---|---|---|
| Standrad Value of Tensile Strength | 3800MPa | |
| Tensile Elastic Modulus | 234500MPa | |
| Elongation | 1.7% | |
| With Concrete | Concrete Damaged: ≥2.5MPa | |
| Density | 1.8g/cc (0.065lbs.in3） | |
| Arear Weight | HM-20 unidirectional carbon fiber sheet | 0.111mm (0.0044in.) |
| HM-23 unidirectional carbon fiber sheet | 0.128mm (0.0050in.) | |
| HM-30 unidirectional carbon fiber sheet | 0.167mm (0.0065in.) | |
| HM-45 unidirectional carbon fiber sheet | 0.251mm (0.0097in.) | |
| HM-53 unidirectional carbon fiber sheet | 0.295mm (0.0114in.) | |
| HM-60 unidirectional carbon fiber sheet | 0.333mm (0.0130in.) | |
- Unidirectional black weaves carbon fiber sheet (bidirectional carbon fiber cloth can be customized by requirements).
- Typic width are 10cm, 15cm, 20cm, 25cm, 30cm, 50cm, 60cm.
- Other width can be customized by requirements.
- TexCo carbon fiber sheet roll length should be 100m/roll.