Some Considerations in Using Strain-Life Approach in Fatigue Design 790889
The use of the strain-life technique in designing for finite fatigue life is discussed. The difference in mathematical form of the cyclic stress-strain curve and hysteresis loops is explained. Examples are given to illustrate that stronger materials are not necessarily better for fatigue resistance. The importance of the knowledge of actual operating conditions of components and structures in designing for finite life is emphasized. Conditions under which the strain-life and Kf-Δs methods yield the same results are derived. A list of materials which satisfy these conditions is included.
Citation: Seshadri, T. and Pierce, P., "Some Considerations in Using Strain-Life Approach in Fatigue Design," SAE Technical Paper 790889, 1979, https://doi.org/10.4271/790889. Download Citation
Author(s):
T. V. Seshadri, Phil R. Pierce
Affiliated:
R & D Div., Fruehauf Corp.
Pages: 12
Event:
1979 SAE International Off-Highway and Powerplant Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
Fatigue Resistance Testing and Forecasting-SP-0448
Related Topics:
Fatigue
Design processes
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