Thermal Fatigue Calculator

Calculate thermal fatigue life from cyclic temperature loading using Coffin-Manson and Taira approaches.

Temperature swing per cycle.
°C
Thermal expansion coefficient. Steel: 12e-6/°C.
×10⁻⁶/°C
At mean operating temperature.
GPa
Fatigue ductility coefficient. Steel: 0.2-0.6.
Fatigue ductility exponent. Typically -0.5 to -0.7.

Results

Thermal Strain Range-mm/mm
Fatigue Life-cycles
Thermal Stress (elastic)-MPa
References: ASME BPVC III — Design by Analysis; Coffin-Manson Equation