Important Factors of CF

CF depends strongly on the combined interactions of the mechanical (loading), metallurgical, and environmental variables (9). [Pg.61]

The main mechanical properties of importance are (9) maximum stress or stress intensify factor t7n,ax or cyclic stress or stress intensity range, A t or Ak, stress ratio R, cyclic loading frequency, cyclic load waveform (constant-amplitude loading), load interactions in variable-amplitude loading, state of stress, residual stress, crack [Pg.61]

Cyclic load frequency is the most important factor that influences CF in most material environment and stress intensity conditions. The dominance of frequency is related directly to the time dependence mass transport and chemical reaction steps involved for brittle cracking. [Pg.61]