If there is no mesh refinement defined, the global mesh settings apply to the model. However, you can use the mesh refinements for the important areas in order to keep the low number of finite elements and thus the short computing time. The important areas are either important for the evaluation or affect the accuracy of modeling:
- Member-surface transitions
- Wall ends (see the figure)
- Division of members for a dynamic calculation (otherwise it is not enough or no mode shapes are found)
It is recommended to perform the analysis of FE mesh quality on a model in order to examine the impact of the FE mesh size on the result. Thus, you can find the optimum between the required accuracy and the computing time.
Buildings made of cross-laminated timber (CLT), glued-laminated timber and OSB panels modeled with the RFEM program
The number of degrees of freedom in a node is no longer a global calculation parameter in RFEM (6 degrees of freedom for each mesh node in 3D models, 7 degrees of freedom for the warping torsion analysis). Thus, each node is generally considered with a different number of degrees of freedom, which leads to a variable number of equations in the calculation.
This modification speeds up the calculation, especially for models where a significant reduction of the system could be achieved (e.g. trusses and membrane structures).
- I would like to calculate and design "temporary structures." What do I need for this?
- Which programs can I use to calculate and design power plants?
- In the filter settings for the values on surfaces, you can display a certain range of results and hide the rest. How can I hide a certain range of values and display the rest?
- What is the best way to consider steel fiber reinforced concrete with the structural analysis program RFEM?
- I would expect the results from my load combination (CO) set to a linear analysis to equal the summation of the results from my load cases (LC) also set to a linear analysis. Why do the results not match?
- Which Dlubal Software programs are required to calculate membrane and tensile structures?
- Does a user-defined layer composition in RF-LAMINATE need to be shared separately with other users along with the RFEM model file or is this information stored directly in the RFEM file?
- I have modeled two nodes on a surface in RFEM. The results do not show the displacement at these two nodes. How can I obtain it?
- Which add-on modules and programs do I need for laminate and sandwich structures as well as cross-laminated timber (CLT)?
- I would like to analyze cable and tensile structures. Is it possible to use RFEM or RSTAB for this?
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