FAQ 003020 EN

30 April 2019

Sonja von Bloh Modeling | Structure RFEM

I get the warning No. 469 "Lines [line numbers] lying in the surface intersect each other and share no common node." If I confirm the warning with "No," the error No. 639 appears: "Error No. 11 while generating the FE mesh!". What can I do?

Answer

The intersection of the lines mentioned in the warning must be created using the "Connect Lines/ Members" function. To do this, select the "Connect Lines/ Members" function and then draw the window across the elements to be intersected (see Figure 03).

In many cases, stiffening bracings are modeled in the same plane as the surface, and the members are subsequently set eccentrically. Please keep in mind that the lines and thus the members are automatically integrated into the surface. Since the stiffening brace should usually only transfer axial forces, it is recommended to remove it from the surfaces to avoid creating a bond between the surface and the member. To do this, remove the corresponding lines from the surface in the "Integrated" tab (see Figure 04).

Keywords

FE mesh Mesh generation Error No. 639 Warning No. 469 Crossing lines

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RFEM 5.xx

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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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