A virtual circular defect loop method was developed for determining the elastic fields that were produced by defects in a bounded medium in the case of an axially symmetrical geometry. Thus, continuously distributed virtual circular Volterra and Somigliana dislocation loops were adjusted so as to satisfy the boundary conditions which were imposed at free surfaces and interfaces. Calculations were made of the elastic fields of circular defect loops of various type. Elastic fields were found for the case of straight dislocations and disclinations, in a plate, that were perpendicular to the plate plane and for the case of circular disclination loops that were parallel to the plate plane or to an interface.

A virtual circular defect loop method was developed for determining the elastic fields that were produced by defects in a bounded medium in the case of an axially symmetrical geometry. Thus, continuously distributed virtual circular Volterra and Somigliana dislocation loops were adjusted so as to satisfy the boundary conditions which were imposed at free surfaces and interfaces. Calculations were made of the elastic fields of circular defect loops of various type. Elastic fields were found for the case of straight dislocations and disclinations, in a plate, that were perpendicular to the plate plane and for the case of circular disclination loops that were parallel to the plate plane or to an interface.

Dislocation and Disclination Loops in the Virtual-Defect Method. A.L.Kolesnikova, A.E.Romanov: Physics of the Solid State, 2003, 45[9], 1706-18