Abstract
Existing short fatigue crack models have been reviewed to determine the most suitable fatigue model to analyse the effect of the surface finish on the fatigue limit of Type 304 austenitic stainless steels. A mechanistic model firstly proposed by Navarro and Rios (N-R model) was selected as the most suitable generic model, because the model can include the effects of surface finishing parameters such as surface roughness and residual stress depth profile on the fatigue limit. The N-R model has been implemented for fatigue specimens with various surface finishing conditions, and the effect of the surface finish on the fatigue limit was simulated. The material/surface properties required for the implementation were fully characterized by experiments. The applicability of the model to this study was also discussed. It is concluded that a development of the model would be required for proper prediction of the surface effects on fatigue in austenitic stainless steels. © Journal Compilation © 2008 Blackwell Publishing Ltd.
| Original language | English |
|---|---|
| Pages (from-to) | 581-598 |
| Number of pages | 17 |
| Journal | Fatigue and Fracture of Engineering Materials and Structures |
| Volume | 31 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - 2008 |
Keywords
- Austenitic stainless steel
- Fatigue limit
- Mechanistic modelling
- Residual stress
- Short fatigue cracks
- Surface roughness