Abstract
Using the theory of small deformations superposed on finite deformation, the problem of loading by uniform pressure on the surfaces of a plane circular crack in and initially extended or compressed (along the crack) elastic medium is considered. The model of incompressible isotropic material of a general form is used. The problem is solved by reduction to a dual integral equation. It is established that the initial stress does not change the order of the singularity of the stress field near the rib crack, but affects the character of stress distribution along the crack rim and the displacements of the crack edges.
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