Edge dislocation beneath an arbitrarily shaped indenter. The effect of the surface is modeled by a virtual dislocation, shown by the dotted symbol (image dislocation construction).
Edge dislocation beneath a flat-punch indenter. The dislocation drawn in dotted line is the image dislocation.
Symmetric dislocation nucleation near both edges of a flat-punch indenter. The dislocations shown by the dotted symbols are the image dislocations.
Dislocation nucleation beneath a cylindrical indenter.
Edge dislocation beneath a flat-punch indenter within the confines of contact region (corresponds to a negative value of in Fig. 2). The dislocation drawn in the dotted line is the image dislocation.
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