CircleHollow3D 3D Hollow Circle Section The radius should be the outer radius, which shall be half of the overall diameter. Syntax Text Only1 2 3 4 5 6 7 8section CircularHollow3D (1) (2) (3) (4) [5] [6] [7] # (1) int, unique section tag # (2) double, radius # (3) double, thickness # (4) int, material tag # [5] int, number of integration points of half circle, default: 10 # [6] double, eccentricity along y axis, default: 0.0 # [7] double, eccentricity along z axis, default: 0.0