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FAQ 003178 EN

18 June 2019

Markus Baumgärtel Results RFEM RSTAB

What is the recommended setting for the distribution of internal forces/stresses in the Project Navigator - Display?

Answer

The FE analysis determines the results for each FE mesh node. Usually, a continuous distribution of the internal force or deformation is preferable for the graphic. For this purpose, it is necessary to smooth the results e.g. by interpolation. However, the question can not be answered universally, because it has to be decided from model to model. Basically, RFEM distinguishes between the following five options:

  • Constant on elements
    constant distribution in the element

  • Non-continuous
    Interpolation in element based on results in special points

  • Continuous within surfaces
    Mean value mode at the node within the defined surfaces, followed by interpolation via the element

  • Continuous total
    All results are averaged on the node (independent of the defined surfaces); subsequently, the interpolation takes place via the element

  • Continously by groups
    It is also possible to smooth results by groups. RFEM provides Generated groups with similar material properties. You can create user-defined groups of surfaces or solids by using the navigator shortcut menu (right-click User Groups).
There is already an interesting technical article about this topic.

Keywords

Mean value mode Smoothing Diagram of internal forces Work window Continuous Constant Continuous

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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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RSTAB 8.xx

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The structural engineering software for design of frame, beam and truss structures, performing linear and nonlinear calculations of internal forces, deformations, and support reactions

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