FAQ 004594 | When calculating a stiffened panel, I get the message that the boundary c/t-zone of the panel is not supported. What should I do?

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08/06/2020

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Question

When calculating a stiffened panel, I get the message that the boundary c/t-zone of the panel is not supported. What should I do?

Answer

The panel has to be supported at the start and the end of it, that means, a support is required here. If this is not the case, the message shown in Figure 01 appears.

Figure 01 - Error Message "The boundary c/t-zone is not supported."

If there is a free edge, add the support manually. The support can be specified in Column C and Column D in Table "1.7 Cross-Section Parts for Classification According to EN 1993‑1" or in the "Edit c/t-Part" dialog box (Figure 02).

Figure 02 - Support in Dialog Box and Table (marked in red)

The panel shown in Figure 03 contains Elements 1 to 3. However, the elements have no support at their free ends (marked red in Figure 04), so the error message shown in Figure 01 appears. The support must be added (Figure 05) to enable the calculation. This is also shown in the video.

Figure 03 - Panel

Figure 04 - Missing Support at Free Edges

Figure 05 - Added Support at Free Edges

Keywords

Dlubal FAQ Longitudinally stiffened Longitudinal stiffener Stiffener Panel Sheet metal panel Frequently Asked Question FAQ about Dlubal Question and Answer about Dlubal

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  • Updated 10/26/2020

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