Model Data>" Member Divisions. " This division ensures that z. For ex" /> Model Data>" Member Divisions. " This division ensures that z. For ex" /> How many divisions must a member have for the calculation in RFEM so that I get accurate results? | Dlubal Software
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FAQ 003485 EN

15 August 2019

Markus Baumgärtel Results RFEM Structural Analysis & Design

How many divisions must a member have for the calculation in RFEM so that I get accurate results?

Answer

It is not possible to globally answer this question because it depends on the system. There are several divisions to consider in RFEM.

1. Member divisions for result tables
You can create member divisions for result values by using the menu "Insert> Model Data>" Member Divisions. " This division ensures that z. For example, RFEM results tables where the internal forces of members can also be displayed at intermediate points. The graphical output remains unaffected.


2. Member divisions
The divisions for the graphical result diagram and the determination of the extreme value can be viewed and influenced in the FE mesh settings (see Figure 1).

For cable, foundation, and tapered members or members with plastic properties, you can specify the number of internal divisions. They lead to a real division of the member by intermediate nodes. However, if a member is arranged on the boundary line of a surface or if the definition line has an FE mesh refinement, the specification has no effect.

To also divide beams by intermediate nodes for a calculation according to the large deformation analysis, select the Activate member divisions for large deformation or post-critical analysis option so that these members are calculated with a higher accuracy. The number of member divisions is determined in the text box above.

If you Use division for straight members, which are not integrated in surfaces, FE nodes are generated on all free members and considered for calculations according to the linear static and second-order analysis. The length of the finite elements is either determined by the global target length lFE set in the General dialog section or entered manually.

The Divide By Nodes located on the members option creates FE nodes on the member locations where end nodes of other members lie without a connection between the members.

Keywords

Member Division Distribution of internal forces FE mesh member

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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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