THE SOMIGLIANA RING DISLOCATION REVISITED .2. SOLUTIONS FOR DISLOCATIONS IN A HALF-SPACE AND IN ONE OF 2 PERFECTLY BONDED DISSIMILAR HALF-SPACES

Solutions for Somigliana ring dislocations in an elastic half space an d in two perfectly bonded dissimilar half spaces, with the dislocation ring parallel to the interface, are obtained from the Papkovich poten tial solutions by using Aderogba's Theorem. Interaction between a disl ocation and a free surface or a perfectly bonded interface is consider ed. Implications of the results for the solution of crack problems are discussed.