Material Axial Fatigue Testingmaterial fatigue testing service

  •  Low Cycle Fatigue (LCF) Test, ASTM E606 - Strain Controlled Axial Fatigue Test
    • ASTM E606 determines the fatigue properties and crack initiation for nominally homogeneous materials by the use of uniaxially loaded test specimens under constant strain amplitudes. Typically 15 to 20 specimens are tested using a fully reversed strain amplitude. Test specimens have a uniformed gage section. Strain amplitudes typically range from .015 strain to .002 strain. In addition to developing the Strain versus Life plot, the cyclic and monotonic Stress versus Strain plots are obtained. Customer may dictate the R ratio and the strain levels.
  • High Cycle Fatigue (HCF) Test, ASTM E466 - Constant Stress Amplitude Axial Fatigue Test
    • ASTM E466 determines stress versus fatigue life data by the use of uniaxially loaded test specimens under constant stress amplitudes. Typically 15 to 20 specimens are tested using a fully reversed stress amplitude. Customer may dictate the R ratio, stress levels and the test frequency.
  • Material Characterization for Developing the Fatigue Properties
    • Fatigue Strength Coefficient, sf' (ksi)
    • Fatigue Strength Exponent, b
    • Fatigue Ductility Coefficient, ef'
    • Fatigue Ductility Exponent, c
    • Cyclic Strength Coefficient, K'
    • Cyclic Strain Hardening Exponent, n'

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