Accession Number:
AD0692638
Title:
DETERMINATION OF THE FATIGUE LIMIT IN THE CASE OF AN ASYMMETRICAL STRESS CYCLE,
Descriptive Note:
Corporate Author:
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OHIO
Personal Author(s):
Report Date:
1969-06-05
Pagination or Media Count:
13.0
Abstract:
The paper discusses the complications involved in predicting fatique life on the basis of tests or observations to establish S-N relationships. The various formulas proposed in the literature for calculating the fatigue limit under symmetric and asymmetric cyclic loading are reviewed and compared with experimental data. A convenient method is proposed for constructing a simplified maximum stress diagram and a general expression is given for the fatigue limit. A comparison between experimental data and the results given by this formula shows a divergence of 1.5-6 percent. In using thses formulas, it is sufficient to know the tensile strength of the material and the fatigue limit in the case of a symmetric stress cycle, i. e. figures which may be found in the reference literature.
Descriptors:
Subject Categories:
- Solid State Physics