Rapid Determination of the S-N Curve for Steel by means of the Thermographic Method

Table 3

Summary of fatigue life for the individual specimens made of C45 steel in the accelerated tests.

Specimen		Number 1	Number 2	Number 3
Level of fatigue failure		16	16	15
Failure stress, MPa		380	380	370
Total fatigue life, in cycles		474 500	475 300	429 800