BIMODAL CONCEPT OF HIGH‐CYCLE FATIGUE LIFE PREDICTION FOR CONSTANT AND VARIABLE AMPLITUDE FATIGUE
Source abstract
Abstract
A bimodal concept for the prediction of the high‐cycle fatigue life of structural details subjected to constant‐ or variable‐amplitude loading is considered in this paper. The total fatigue life was separated into two phases: crack initiation and crack propagation. The portion of life spent in crack initiation was estimated by using S–N data obtained on smooth specimens. A fracture mechanics concept was used to calculate the portion of life spent in crack propagation, and the S–N curve, including the fatigue limit of a structural detail, was determined by using material properties and the geometry of the detail. The bimodal concept was applied to a welded stiffener and the results are compared with experimental data reported in the literature.
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Research context
OpenAlex topics: Fatigue and fracture mechanics · Mechanical Behavior of Composites · Engineering Structural Analysis Methods
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References (24)
Show source-provided references
1. 10.1016/0013-7944(79)90142-510.1016/0013-7944(79)90142-5 ↗
2. 10.1016/0013-7944(85)90014-110.1016/0013-7944(85)90014-1 ↗
3. 10.1016/0020-7403(78)90082-610.1016/0020-7403(78)90082-6 ↗
4. Fatigue‐limit effect on variable‐amplitude fatigue of stiffeners10.1061/JSDEAG.0005316 ↗
5. PAlbrecht&CGRubeiz1987Variable amplitude load fatigue. Report No. DTFH61‐86‐C‐0036‐II University of Maryland.
6. 10.1520/STP32556S10.1520/STP32556S ↗
7. AAbtahi PAlbrecht GRIrwin1977Fatigue strength of a structural detail subjected to single and periodic overloadsMechanics in Engineering University of Waterloo Press pp. 313–334.
8. PCParis1965The fracture mechanics approach to fatigueProceedings of the Tenth Sagamore Conference Syracuse University Press NY p. 107.
9. Extensive study of low fatigue crack growth rates in A533 and A508 steels
10. 10.1016/0025-5416(72)90038-910.1016/0025-5416(72)90038-9 ↗
11. Fatigue of periodically overloaded stiffener detail10.1061/JSDEAG.0004473 ↗
12. In cyclic stress–strain behavior‐analysis, experimentation and failure prediction
13. GANikolaev1965The Calculation of Welded Joints and Strength of Welded Structures (in Russian) Vischaya shcola Moscow Russia
14. NAKlikov1984The Calculation of the Fatigue Strength of Welded Joints (in Russian) Mashinostroenie Moscow Russia
15. RWHertzberg1983Deformation and Fracture Mechanics of Engineering Materials John Wiley New York
16. Rapid calculation of stress intensity factors10.1061/JSDEAG.0004556 ↗
17. 10.1111/j.1460-2695.1987.tb01146.x10.1111/j.1460-2695.1987.tb01146.x ↗
18. IJSmith1984The effect of geometry changes upon the predicted fatigue strength of welded joints Proceedings of the Third International Conference on Numerical Methods in Fracture Mechanics Pineridge Press Swansea UK pp. 561–574.
19. Delay effects in fatigue crack propagation
20. Cumulative damage in fatigue10.1115/1.4009458 ↗
21. MLJames GMSmith JCWolford1967Applied Numerical Methods for Digital Computation with FORTRAN International Textbook Company Pennsylvania
22. Four lectures on fatigue crack growth
23. The three thresholds for fatigue crack propagation
24. EHaibach1970Modifizierte lineare schadensakkumulations‐hypothesse zur berucksichtigung des dauerfestigkeitsabfalls mit fortschreitender schadigung Laboratorium fur betriebsfestigkeit TM. No. 50/70 Darmstadt Germany.