Quadratic (Elliptic) Method Fatigue Curve Equationn
Strength and Mechanics of Materials
Quadratic ( Elliptic ) Method
Where: | |
= Amplitude of normal (shear) stress [MPa,psi] | |
= Endurance limit at constant strength [MPa,psi] | |
= Mean cycle stress [MPa,psi]] | |
= Virtual mean stress [MPa,psi] | |
= Ultimate tensile strength [MPa,psi] | |
= When SUS SU |