The stresses were calculated for a long bar, with a square cross-section, in an electric field. Mass transfer at constant surface concentration was assumed. Analytical solutions were obtained for the concentration, and these results were then used to estimate the diffusion-induced stresses analytically by introducing displacement potentials and Airy stress functions. When an electric field was applied, the solute was forced to diffuse along the field direction and thus caused an asymmetry about an axis which was perpendicular to the field direction. The electric field could depress the stresses and alter the positions of the local maximum stresses along the field direction; more strongly in the interior than at the outer surface. These effects were more apparent at short times than at long times.

C.C.Hwang, K.M.Chen, J.Y.Hsieh: Journal of Physics D, 1994, 27[10], 2155-62