Fatigue High Cycles Finite LifeFor many applications the number of stress cycles experienced by a component during its service
life is between 10
b = the slope of the line At the endpoints of the high cycles finite life rang (10
subtracting the equation for S'
To obtain C it is simply necessary to substitute the above into the equation for S'
Therefore knowing the low level fatigue strength (S' If the fatigue strength is known and the number of cycles to failure is needed then the following formula applies Example: to determine the strength at 10 |

- MATWEB ... Vast source of material data including some fatigue values
- Fatigue Tests on Welded Joints ... Useful informative report download
- Fatigue Design & Evaluation Committee of the SAE ... Includes a accessible database of fatigue reports on SAE steels
- Efatigue.com... Excellent Source of Fatigue data. (Based on US materials )
- Fatigue Basics -epi_eng ...Useful set of notes