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I need to model a curved wall element with some drilled circular holes in the surface. To create these holes in RFEM, I would normally draw a circle in the wall element to create the opening.

But how do I draw a circle on a curved surface?

Answer

To define openings and recesses in walls, it is necessary to define boundary lines of the opening. This is easy to do for plane surfaces.

It is trickier for curved surfaces. You can, however, do it by creating intersections. First of all, create an object that penetrates the surface at the desired location of the opening (in this case a pipe).

Then select the surfaces similtaneously and select "Create Intersection" in the context menu. This creates the intersection curves.

You can use the "Edit Component" menu to open the "Component" tab where you can activate or deactivate the generated surface parts. To create the opening, remove all ticks from the active components that are not required.

Keywords

Intersection Pipe quadrangle Curved intersection

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Structural engineering software for finite element analysis (FEA) of planar and spatial structural systems consisting of plates, walls, shells, members (beams), solids and contact elements

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