The advantage of interpolated distribution is compliance with the distribution of a refined mesh. The disadvantage is that this distribution does not correspond exactly with the calculation result. Therefore, it is important always to use a refined mesh for the analysis of critical points. For example, when using a plastic material, the real plastic limit stress is displayed correctly only if you select the "Constant on elements" option.
Smoothing Options
Just as in the RFEM Display Navigator, you can set the distribution of internal forces in surfaces in RF‑STEEL Surfaces. Since deformations are always the result of the FEM calculation, the corresponding forces will be recalculated. This means that the internal forces on an FEM element are calculated depending on the composition (triangular or square) in three or four places. In order to obtain continuous internal forces and thus a smoothed distribution, these internal forces have to be interpolated. Interpolation is done by selecting the "Distribution of internal forces" option in the surfaces.
Author
Mr. Günthel provides technical support for our customers.
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