STRESS-FIELDS DUE TO DISLOCATION WALLS IN INFINITE AND SEMIINFINITE BODIES

Stress fields due to dislocation walls in infinite and semi-infinite b odies are derived. Finite, infinite, and semi-infinite walls of identi cal edge dislocations with uniform spacing are considered. The results corresponding to walls with discrete dislocation distributions are co mpared to those of the walls with continuous distribution of infinites imal dislocations. The stress relaxation effects produced by the free surface in the neighborhood of a dislocation wall are studied. It is s hown that the long range stresses are exerted by bounded walls in both infinite and semi-infinite bodies. The stress divergence or its absen ce is discussed for various wall configurations.