Abstract
The effects of surface stress on fracture are reviewed. Calculations by Thomson et al. seem to suggest that surface stresses do not affect cleavage fracture when the crack propagates in a self similar manner even though the surface stress can lead to large stresses near the crack tip. However, surface stresses may have an important effect on dislocation emission near the crack tip. A simple analysis is offered to show how these effects may be incorporated into a modified Rice ductile-brittle fracture criterion by adding a term to the unstable stacking energy that takes into account the energy to form an incipient ledge.
| Original language | English (US) |
|---|---|
| Title of host publication | Materials Research Society Symposium - Proceedings |
| Publisher | Materials Research Society |
| Pages | 84-93 |
| Number of pages | 10 |
| Volume | 409 |
| State | Published - 1996 |
| Externally published | Yes |
| Event | Proceedings of the 1995 MRS Fall Symposium - Boston, MA, USA Duration: Nov 27 1995 → Nov 30 1995 |
Other
| Other | Proceedings of the 1995 MRS Fall Symposium |
|---|---|
| City | Boston, MA, USA |
| Period | 11/27/95 → 11/30/95 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials