Mechanical equilibrium of an edge dislocation dipole near a crack tip
Abstract
The mechanical equilibrium of an edge dislocation dipole near a crack tip is investigated analytically. The strain energy of the edge dipole in an infinite medium with a semi-infinite crack is derived. The image force and torque on the edge dipole are calculated on the basis of strain energy. The mechanical equilibrium of the edge dipole is compared with that of a monopole.
- Publication:
-
International Journal of Fracture
- Pub Date:
- October 1992
- Bibcode:
- 1992IJFr...57..317W
- Keywords:
-
- Crack Tips;
- Edge Dislocations;
- Strain Energy Methods;
- Stress Distribution;
- Stress Intensity Factors;
- Dipoles;
- Fracture Mechanics;
- Phase Transformations;
- Structural Mechanics