Abstract
An analytical solution is presented for the time‐dependent stresses and displacements in plane strain around a circular hole when it is loaded by an axisymmetric internal and far‐field pressure. The material is assumed to be elasto‐viscoplastic with dilatant plastic deformations according to a non‐associated flow rule. Strain softening is considered by a modified St. Venant slider which is characterized by Mohr‐Coulomb yield conditions for both the peak and the residual strengths.