Material and Processing Effects on Fatigue Performance of Leaf Springs 790407
Procedures are developed for assessing the influence of various material and processing factors on the fatigue performance of leaf springs. Cyclic material properties, determined from smooth axial specimens of spring steel, are used to determine the level and cyclic stability of residual stresses resulting from mechanical processing as well as the amount of permanent deformation associated with presetting operations. A damage parameter, incorporating material properties, residual stress effects and applied stressing conditions, is used to predict failure location, i.e. surface or subsurface, and lifetime as a function of processing sequence. Predictions are found to be in good agreement with experimental bending results.
Citation: Landgraf, R. and Francis, R., "Material and Processing Effects on Fatigue Performance of Leaf Springs," SAE Technical Paper 790407, 1979, https://doi.org/10.4271/790407. Download Citation
Author(s):
R. W. Landgraf, R. C. Francis
Affiliated:
Ford Motor Co.
Pages: 10
Event:
1979 Automotive Engineering Congress and Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Fatigue
Springs
Steel
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