# MacNeal–Harder curved cantilever, hex8 with incompatible modes

Our model of the published problem: a quarter ring, inner radius 4.12, outer 4.32, thickness 0.1
(E = 10⁷, ν = 0.25), of the prescribed 6 × 1 elements (hex8 with incompatible modes, corners on
the arcs), clamped at one end; a unit force at the free end, in the plane across the beam and out
of the plane, each a separate step.