Select the Connection type — Solid boundaries to beam points, or Solid and beam parallel boundaries.

In this case, there is an automatic search for possible adjacent geometrical objects. If you want to modify the selections, select the Manual control of selections check box. If to deselect it, the selections will be replaced by the automatic ones.

For a manual selection, select the connected solid boundaries in the Boundary Selection, Solid section and the corresponding beam points in the Point Selection, Beam section.

Select Connected area defined by — Section height, Selected boundaries, or Distance from beam axis. This parameter determines how much of the selected solid boundaries that are actually connected to the beam. The default is that a distance from the beam point having the size of the half the beam section height in each direction is connected. Using Selected boundaries connects the entire selected boundaries to the beam. If you select Distance from beam axis, enter a Distance d. This is used instead of the section height for defining the connection distance.

Select a Method — Rigid or Flexible. The Rigid version of the coupling only adds constraints to the boundary of the solid, which in general causes local disturbances of the stress field, since the thickness cannot change. When using the Flexible coupling, three extra degrees of freedom are added to each beam point. This allows for a more accurate description of the transition, but the model can in some cases become underconstrained if the mesh on the solid is very coarse.

If needed, modify the Connection tolerance Δ.The search distance is slightly extended by the distance Δ. The default value is 0.5% of the beam height.

Select the connected solid boundaries in the Boundary Selection, Solid section and the corresponding shell edges in the Boundary Selection, Beam section.

Select Distance evaluation — Section height, Geometrical distance, or User defined. This parameter determines how the coupling treats the determination of the connection distance, used when expressing th coupling between translation and rotation. The default is that a distance equal to half the section height is used. If you select Geometrical distance, the connection distance is computed from the geometrical distance between the solid boundary and the beam boundary. For User defined enter a Distance d. This defines the connection distance.