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FAQ 002676 EN-US

11/25/2019

Sonja von Bloh Modeling | Structure SHAPE-THIN

How can I model roundings, chamfers, etc.?

Answer

Irregularities in the cross-section geometry can be represented with point elements. They can be added as fillets, rectangles, circles, or triangles, or removed from element surfaces. In this way, it is possible to additionally consider or exclude the area of the point element for the cross-section values.

To insert point elements, select Insert → Cross-Section Data → 1.5 Point Elements or use the corresponding toolbar button (Figure 1).

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

Furthermore, you can use the "Round or Angled Corner" function to provide corners and edges of the cross-section with fillet radii and deflections. To access this function, select Edit → Round Corner or Angled in the 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." displays the numbers of the elements.

If the "Detach elements" check box is active, the projections of the original elements in the corner area are deleted after the arc or the new element has been created. 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 the function, select Edit → Smooth Corner. Then, click one of the two elements in the overlapping area in the work window. The relevant element page is shortened and the adjacent element page is extended accordingly. A null element creates the connection between the elements.

Keywords

Point element Chamfer Trimming Rounding Round off Angling Even

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Cross-Sections Thin-Walled
SHAPE-THIN 8.xx

Cross-Section Properties Software

Section properties, stress analysis, and plastic design of open and closed thin-walled cross-sections

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