Soderberg Method Fatigue Curve Equation

Strength and Mechanics of Materials

Soderberg Equation Method for Fatigue

Soderberg Method

Where:
Amplitude of normal (shear) stress = Amplitude of normal (shear) stress [MPa,psi]
Endurance limit at constant strength = Endurance limit at constant strength [MPa,psi]
Mean cycle stress = Mean cycle stress [MPa,psi]]
Yield tensile strength = Yield tensile strength [MPa,psi]
Yield tensile strength = Yield tensile strength [MPa,psi]
Yield shear strength = Yield shear strength [MPa,psi] when SYS .577 SY