Tensile Test on Carbon Fibers (Reference Standards: ISO 11566:1996 / JIS R 7606:2000)
Carbon fibers are essential components of carbon fiber reinforced plastics (CFRPs). They are important industrial materials because their specific gravity is 1/4 and material strength is seven times higher as compared to general ferrous materials. This experiment introduces a tensile test on a single filament of carbon fiber in accordance with the standards
Measurements and Jigs
In this test, the sample is fixed on a specimen mat made of a metal or resin sheet and attached on the grip as shown in Fig. 1 and then a tensile test is performed. The standards provide a detailed explanation about the shape of the mat, type of adhesive used to place a carbon fiber on the mat, and procedures to place the carbon fiber. (For details, refer to the standards.)
In the test, a clip type grip is used to adjust the clamping force according to the strength of the sample.
Measurement Results
Fig. 2
| Item | Setting Value |
| Test Speed | 1mm/min |
| Grip spac | 25mm |
[ Table 2 Test Results (Mean Value) ]
| Sample Name | Diameter | Tensile Strength | Breaking Elongation |
| Carbon Fiber | 6μm | 7.1GPa | 2.84% |
| Testing machine | AGX-V |
| Testing jig | 1 N clip type grip (with rubber-coated grip faces), X-Y stage |
| Software | TRAPEZIUM X (Single) |
Materials Testing Software
TRAPEZIUM X
Enables Intuitive Operation