Anti-Plane Strain
Anti-Plane Strain : Assumed two-dimensional symmetry, used to simplify mathematical analysis or numerical calculation, in which displacement depends on only two spatial co-ordinates and its direction is perpendicular to the plane of those co-ordinates. Strike-slip displacement that does not vary along strike is an example of anti-plane deformation. Examples are a Love wave from a line source and mode 3 crack (see Figure 6 in IS 3.1., plane strain, mode 3 crack, Love wave, and Love, 1944)