Plastic Exfoliation of a Thin Stiff Inclusion Parallel to the Boundary of Half Space in the Case of its Unilateral Contact with the Medium

We obtain a numerical-analytic solution of the antiplane problem of stress-strain state of the elastoplastic half space with a thin rigid tunnel inclusion parallel to the boundary of the half space. It is assumed that, prior to loading, the inclusion is in unilateral mechanical contact with the medium. The specific features of plastic exfoliation of the inclusion are analyzed. Some partial cases are investigated.