Abstract
The paper presents the analytical method of determining the S-N curve based on the static material properties. To verify the procedure algorithm, an experiment has been carried out to define the reference fatigue characteristics of material 42CrMo4. The research was performed with the use of the rotary-bending test stand made according to ones own design. The proper operation of the material testing machine was verified compliant with the ISO 1143 standard and presented in the previous paper [7]. To compare the proposed method, different characteristics according to analytical methods from literature have been determined. To verify this approach, statistical calculation has been performed. Statistical method was derived from paper [3]. The best results were achieved by the proposed method. As analytical method can lead to large error, which was presented in the papers [4,7,8], it was decided to use hybrid method. That method is based on analytical method supported by a simple experiment. Verification of this approach has produced satisfactory results.
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