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FAQ 002993 EN

24 April 2019

Gerhard Rehm Results RFEM Finite Element Analysis

Why do the results of line support reactions differ from the surface results?


The main reason for this is the FE mesh size as well as the different smoothing of the results. The results should be similar with an increasingly finer FE mesh. Figure 01 shows a comparison with a relatively rough FE mesh. The support resultant is 16.84 kN. However, the resultant of the surface results is only 14.41 kN. If the FE mesh is refined at this point (see Figure 02), the results are similar. The FE mesh has been refined further in Figure 03. The results are now exactly equal. The deviation at the start can be explained by the singular location and the internal plainness smoothing.


Difference Line Support Surface result Smoothing FE mesh

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