Abstract
This paper examines the application of the Jk, L and M integrals, in complex-variable form, to the Boussinesq wedge. The wedge is symmetrical and subjected to a point couple and point forces at the apex of the wedge. In the case of a point couple acting at the wedge apex the Jy, L and M integrals are found to vanish for all wedge angles whereas Jx displays a 1/r3 path-dependence; where r is a radial dimension measured from the wedge apex. When the wedge is subjected to point forces at the wedge apex then Jx and Jy are 1/r path-dependent whereas L and M are path-independent. The property that the L and M integrals are path-independent for the Boussinesq wedge is applied to the problem of determining the modes I and II stress intensity factors for a corner-loaded edge crack in a half-plane subjected to both normal and parallel point forces to the free surface of the half-plane.
Original language | English |
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Pages (from-to) | 907-916 |
Number of pages | 10 |
Journal | Fatigue and Fracture of Engineering Materials and Structures |
Volume | 20 |
Issue number | 6 |
Publication status | Published - 1997 |
Keywords
- Boussinesq wedge
- Conservation integrals
- Corner-loaded edge crack