Creep transition in bending of rectangular plates

Transitional stresses of a rectangular plate bent into the form of a circular cylinder have been derived in closed form. The effect of compressibility is presented graphically. The result indicate that for n (measure index)>1, the circumferential stress is maximum at the inner surface for an incompressible material and not for the compressible material, while for $\text{n=}\text{1}\text{N}$,(N ? 1), it is found to be maximum at some inner point and not at the inner surface. The neutral surface alters with compressibility of the material and n.