Abstract
Further results given in the present paper confirm that shallow cracks have larger crack tip opening displacements at initiation than deep cracks. This difference in behaviour is shown to be principally caused by the different hydrostatic stresses existing at the tips of shallow and deep cracks. A new method based on lateral crack growth across the thickness is used in this work to measure crack tip opening displacements in specimens containing machined slots rather than fatigue pre-cracks. Justification and advantages of this method are discussed and compared to the conventional technique.
| Original language | English |
|---|---|
| Pages (from-to) | 837-842 |
| Number of pages | 6 |
| Journal | Engineering Fracture Mechanics |
| Volume | 24 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 1986 |
| Externally published | Yes |
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering