This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Fatigue Evaluation of a Nodular Cast Iron Component
Annotation ability available
Sector:
Language:
English
Abstract
A ferritic-pearlitic nodular iron automobile suspension knuckle was fatigue tested in the laboratory using a constant amplitude load level that simulated a severe service condition. It was found that cracks always initiated from surface casting defects and that the fatigue life could be extended significantly by machining away the as-cast surface in the fatigue sensitive locations. Both local strain and fracture mechanics approaches were used successfully to predict the fatigue life of the component.
Recommended Content
Authors
Citation
DuQuesnay, D., Yu, M., Topper, T., and Dabell, B., "Fatigue Evaluation of a Nodular Cast Iron Component," SAE Technical Paper 920669, 1992, https://doi.org/10.4271/920669.Also In
References
- Ikawa, K. Ohira G. “Fatigue Properties of Cast Iron in Relation to Graphite Structure” AFS Cast Metals Research Journal 3 1 1967 11 21
- Adewara, J. O. T. Loper C. R. “Mechanism of Crack Initiation in As-Cast Ductile Iron” AFS Cast Metals Research Journal 11 4 1975 104 108
- Blackmore, P.A. Morton K. “Structure-Property Relationships in Graphitic Cast Irons” International Journal of Fatigue 4 2 1982 149 155
- Seetharamu, S. Srinivasan M. N. “Fatigue Crack Propagation in Permanent Mold Ductile Iron Castings” AFS Transactions 94 1986 265 270
- Doong, J.L. Hwang J.R. Chen H.S. “The Influence of Pearlite Fraction on Fracture Toughness and Fatigue Crack Growth in Nodular Cast Iron” Journal of Material Science 21 1986 871 878
- Starkey, M. S. Irving P. E. “A Comparison of the Fatigue Strength of Machined and As-Cast Surfaces of SG Iron” International Journal of Fatigue 4 3 1982 129 136
- Starkey, M. S. Irving P. E. “The Influence of Microstructure on Fatigue Crack Initiation in Spheroidal Graphite Cast Iron” in Proceedings of the International Symposium on Low Cycle Fatigue Strength and Elasto-Plastic Behavior of Materials Stuttgart 1979
- Socie, D. F. Fash J “Fatigue Behavior and Crack Development in Cast Irons” AFS Transactions 90 1982 385 392
- Ostensson, B. “Influence of Microshrinkage Cavities on the Endurance Limit of Nodular Cast Iron” Journal of the Iron and Steel Institute 211 9 1973 628 631
- Clement, P. Angeli J.P. Pineau A. “Short Crack Behaviour in Nodular Cast Iron” Fatigue of Engineering Materials and Structures 7 4 1984 251 265
- Gilbert, G.N.J. “The Stress/Strain Properties of Nodular Cast Irons in Tension and Compression” Journal of the British Cast Iron Research Association 12 2 1964 170 193
- Starkey, M. “The Influence of Microstructure on the Fatigue Properties of Spheroidal Graphite Cast Irons” GKN Group Technological Centre Memorandum No. 1492 October 1980
- Reemsnyder, H. S. “Constant Amplitude Fatigue Life Assessment Models” in Proceedings of the SAE Fatigue Conference P-109 1982 119 132
- Smith, K.N. Watson P. Topper T.H. “A Stress-Strain Function for the Fatigue of Metals” Journal of Materials 5 4 1970 767 778
- Starkey, M. S. Irving P.E. “Prediction of Fatigue Life of Smooth Specimens of SG Iron by Using a Fracture Mechanics Approach” Amzallag, Leis Rabbe, 1982 382 398
- Castagna, M. Ferrero P. Medana R. Natale E. “Fatigue Properties of In-Mold Ductile Iron” AFS International Cast Metals Journal 4 4 1979 63 72
- De KaZinczy, F. “Effect of Small Defects on the Fatigue Proprties of Medium-Strength Cast Steel” J. Iron and Steel Inst. 208 1970 851 855
- Ogawa, T. Kobayashi, H. “Near-Threshold Fatigue Crack Growth and Crack Closure in a Nodular Cast Iron” Fatigue of Engineering Materials and Structures 10 4 1987 273 280
- Griswold, F.D. Stephens R.I. “Comparison of Fatigue Properties of Nodular Cast Iron Production and Y-Block Castings” International Journal of Fatigue 9 1 1987 3 10