Abstract
A modified strip-yield model has been developed to simulate the plasticity-induced crack closure under the constant amplitude (CA) and a single overload loading conditions. The paper focuses on the simulation of the near tip crack profiles and stress distributions during the fatigue process. Detailed information on near-tip stress and displacement fields at the maximum load (Pmax), the minimum load (Pmin), and the crack opening load (Pop) of a fatigue load cycle have been presented. The correlation of the crack closure to the near-tip material fatigue damage has been investigated and used to rationalize the crack growth behaviour under the CA and a single overload loading conditions.
| Original language | English |
|---|---|
| Pages (from-to) | 77-91 |
| Number of pages | 15 |
| Journal | International Journal of Modelling, Identification and Control |
| Volume | 5 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2008 |
Keywords
- Fatigue
- Plasticity-Induced Crack Closure
- Numerical Modelling