FAQ 002676 | How can I model fillets, bevels, etc.?

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First Steps with RFEM

First steps

We provide hints and tips to help you get started with the basic program RFEM.



Sonja von Bloh


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How can I model fillets, bevels, etc.?


Irregularities in the cross-section geometry can be displayed as point elements. They can be added as rounding, rectangle, circle, or triangle, or removed from member surfaces. In this way, you can additionally consider or exclude the area of the point element for the cross -section properties.

Point elements can be inserted via the menu Insert → Cross -Section Data → 1.5 Point Elements or the corresponding button in the toolbar (Figure 1).

No stresses are displayed on point elements. Point elements are not included in the calculation of the torsional moment of inertia. This can be compensated for by a correction factor in the Calculation Parameters dialog box (Figure 2). B. to detect pronounced fillets.

Furthermore, you can use the "Round off or angled corner" function to provide corners and edges of the cross -section with fillet radii and deflections. To access this function, select the Edit → Fillet or Angled Corner menu (Figure 3). In the Corner Type dialog section, specify if the corner zone should be made round or angled. Depending on the selection, you have to enter the fillet radius r or a reduction by the lengths l1 and l2 in the Parameters dialog section.

The two elements can then be selected by mouse click in the work window without closing the dialog box. In the "Create Between Elements No." the numbers of the elements are displayed.

If the "Separate elements" check box is active, the projections of the original elements in the corner area are deleted after creating the arc or the new element. The Delete corner option also removes the node in the corner.

In addition, you can use the "Smooth Corner" function to model corner areas true to detail without using rectangular point elements (Figure 4). To access this function, select Edit → Smooth Corner. Then, click one of the two elements in the intersection area in the work window. The respective element side is shortened, the adjacent element side is extended accordingly. A null element creates the connection between the elements.


Dlubal FAQ Point element Bevel Rounding Rounding off Round off Angled Smooth Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal


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  • Updated 02/18/2021

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