Shell-Beam Connection

Add the node to create transitions between boundaries or edges modeled using the Shell interface, and edges or points modeled using the Beam interface.

The node is only available with some COMSOL products (see http://www.comsol.com/products/specifications/)

Select the — , , , or .

For all options except , there is an automatic search for possible adjacent geometrical objects. If you want to modify the selections, select the check box. If to deselect it, the selections will be replaced by the automatic ones.

If the automatic selection is not sufficient, select the check box. Then, select the connected shell edges in the section and the corresponding beam points in the section.

Select a —, , , or .

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Using makes all selected edges rigidly connected to the point on the beam.

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For , all parts on the shell edge, which are within the default distance from the beam point, are connected. This distance is determined by the cross section properties of the beam. It is contained in the variable beam.re as described in the documentation for The Beam Interface.

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For enter a rc. All parts on the shell edge, which are within the given distance from the beam point, are connected.

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For enter a Boolean expression in the text field. The beam is connected to the selected shell edge wherever the expression has a nonzero value. The default value is 1, which is equivalent to using the option.

If the automatic selection is not sufficient, select the check box. Then, select the connected edges in the section.

Select an — or . For enter an ζ. For enter values for d0 in the table. The offset is the vector from the reference surface of the shell to the actual position of the beam. The is interpreted in the coordinate system selected in the section.

Enter a value for the Δθ. The default is 1 degree. The two edges are connected only where they are parallel within the specified tolerance.

If the automatic selection is not sufficient, select the check box. Then, select the connected shell boundaries in the section and the corresponding beam points in the section.

Select an option from the list — , , , or .

•

Using makes all selected boundaries rigidly connected to the point on the beam.

•

For , all parts on the shell boundary, which are within the a default distance from the beam point, are connected. This distance is determined by the cross section properties of the beam. It is contained in the variable beam.re as described in the documentation for The Beam Interface.

•

For enter a rc. All parts on the shell edge, which are within the given distance from the beam point, are connected.

•

For enter a Boolean expression in the text field. The beam is connected to the selected shell boundary wherever the expression has a nonzero values. The default value is 1, which is equivalent to using the option.