FAQ 002589 EN

6 March 2019

Andreas Niemeier Modeling | Structure RFEM RFEM 2D

Why are the members, that are close to each other, connected in the calculation?

Answer

The program interprets the entered model for the calculation in a FE mesh. This mesh depends on the shape parameters set in the 'FE Mesh' dialog box.

In order to correct any inaccuracies in the model, there is the parameter ε in the FE mesh settings. In the figurative sense, it regulates the maximum distance between the FE nodes. If the distance between the elements / nodes in the model is smaller than the parameter ε, the FE nodes are merged. The result of this merging is then the described 'connection' of the members in the calculation.

You can avoid this effect and simulate the members independently by setting the parameter ε smaller than the available distance.

Keywords

epsilon distance FE mesh merging members

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RFEM Main Program
RFEM 5.xx

Main Program

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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