INTERNAL-STRESSES IN DISLOCATION WALL STRUCTURE OF PERSISTENT SLIP BANDS

Internal stresses in the dislocation wall structure of persistent slip bands (PSBs) predicted by the classical Mughrabi's composite model [1 ] are compared with the stress field produced by the corresponding arr angement of straight edge interface dislocations. The analytical metho d used allows for separation of the long- and short-range stress compo nents. The presented two-dimensional calculations certify that the ori ginal one-dimensional model accounts for the long-range internal stres ses in an acceptable way.