In this paper, a growth rate law of a small fatigue crack is proposed for an arbitrary metal. Moreover, another method is proposed for considering a size distribution of spheroidal defects_cut by the specimen surface. Both methods are used to predict the high-cycle fatigue life reliability with a large scatter due to the defects. Rotating bending fatigue tests are carried out concretely on a kind of Aluminum Cast Alloy with entectic Si, Fe compounds and porosities, Comparing with experimental data, the validity of the present method predicting for fatigue life reliability from a defect is examined and confirmed.
|Number of pages||9|
|Journal||Nippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A|
|Publication status||Published - Oct 2003|
All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering