0

    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

    textiles-fibers-tensile-test-car

    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.

    Table 1 - Test Conditions

    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 MST-I Type HR
    Title 1 N clip type grip (with rubber-coated grip faces), X-Y stage
    Title TRAPEZIUM X (Single)

    Micro Strain Tester
    Micro Autograph MST-I

    textiles-fibers-micro-strain-tes

    Features

    • High-Precision Displacement Measurement
      A high-precision linear sensor ensures high displacement measurement precision (displacement display resolution of 0.02 μm, and displacement measurement precision of ±0.2 μm up to 5 mm displacement).
    • Measurement of Micro Test Forces
      A wide range of load cells from 0.5 N to 2 kN assures a testing force measurement precision of ±1 % from a minimum load of 2 mN.
    • High-Rigidity Frame
      The frame has an extremely high rigidity of 45 kN/mm so that highly reliable micro displacement measurement can be performed.
    • Wide Range of Options
      An X-Y stage, stereo microscope and other options allow positioning and observation of micro samples to be performed with ease. The optional heating plate allows samples to be evaluated in a heated state.
    • Data Processing Software TRAPEZIUM2
      The TRAPEZIUM2 software that already has a proven track record in the Autograph Series, can be used on the Micro Autograph, too. Its range of high-performance functions, including visual operating environment, ultra-high speed sampling, navigation function, and net upload function, can be fully utilized with ease.

    TRAPEZIUM X
    Materials Testing Software

    trapeziumx_web

    Enables Intuitive Operation