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A SWT Fatigue Mean Stress Model for A356-T6 Cast Aluminum Alloy
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Abstract
This paper documents nonzero mean stress fatigue test data from an additional phase of the SAEFDE Round-Robin Test Program on A356-T6 cast aluminum alloy. The Smith-Watson-Topper (SWT) model was used to fit the original fully reversed fatigue test data and that fit was compared to the new nonzero mean stress fatigue data. This traditional model provides another representation for the fully reversed data besides the more conventional strain-life model, and it also satisfactorily predicts nonzero mean stress test results in the finite life region, industry can use the SWT model to assist in the design evaluation of cast aluminum alloy products where it is necessary to account for variable amplitude service loadings which may include mean stress effects and plastic deformations. The data will also be a useful baseline for additional research on cast aluminum alloy fatigue models.
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Topic
Citation
Cordes, T., Berns, H., Lingenfelser, D., Mahoney, B. et al., "A SWT Fatigue Mean Stress Model for A356-T6 Cast Aluminum Alloy," SAE Technical Paper 881703, 1988, https://doi.org/10.4271/881703.Also In
Fatigue and Fracture Toughness of A356-T6 Cast Aluminum Alloy
Number: SP-0760; Published: 1988-09-01
Number: SP-0760; Published: 1988-09-01
References
- Stephens R. I. Berns H. D. Chernenkoff R. A. Indig R. L. Koh S. K. Lingenfelser D. J. Mitchell M. R. Testin R. A. Wigant C. C. “Low Cycle Fatigue of A356-T6 Cast Aluminum Alloy: A Round-Robin Program,”
- Stephens R. I. Koh S. K. “Improvements in Empirical Representation of A356-T6 Cast Aluminum Alloy Round-Robin Low Cycle Fatigue Data,”
- Smith K. N. Watson P. Topper T. H. “A Stress-Strain Function for the Fatigue of Metals,” J. of Materials, JMLSA 5 4 Dec. 1970 767 778
- Fash J. W. Socie D. F. “Fatigue Behavior and Mean Effects in Gray Cast Iron,” College of Engineering.University of Illinois Urbana-Champaign
- Downing S. D. Galliart D. R. Berenyi T. A. “A Neuber's Rule Fatigue Analysis Procedure for Use with a Mobile Computer,” SAE Paper No. 760317
- Graham J.A. Fatigue Design Handbook SAE 1968
- Downing S. D. “Modeling Cyclic Deformation and Fatigue Behavior of Cast Iron Under Uniaxial Loading,” Jan. 1984 Materials Engineering Mechanical Behavior, College of Engineering, University of Illinois Urbana-Champaign
- Furman P. J. “Fatigue Behavior of Gray Iron Under Axial and Bending Loads,” May 1985 Materials Engineering-Mechanical Behavior, College of Engineering, University of Illinois Urbana-Champaign
- “Constant-Amplitude Low-Cycle Fatigue Testing,” 1984 Annual Book of ASTM Standards 03.01
- Nihei M. Heuler P. Boiler C. Seeger T. Int. J. of Fatigue 8 3 1986 119 126
- Lorenzo F. Laird C. Materials Science and Engineering 62 1984 205 210
- Ellyin F. J. of Engineering Materials and Technology 107 1985 119 125
- Topper T.H. Sandor B.I. TAM Report No. 318 U. of Illinois 1968
- Bergmann J.W. Seeger T. Proc. 2nd European Coll. on Fracture Darmstadt FRG 6 1979
- Landgraf R.W. TAM Report No. 662 U. of Illinois 1966