Error Message for Undefined Stiffeners in Stiffened Buckling Panels

If the stiffeners resting in the panel are not defined explicitly as stiffeners, the message shown in Image 01 appears.

1 Error Message "Some elements are connected to the panel, but they are not defined as stiffeners."

The stiffeners are defined in Table "1.8 Stiffeners" or in the "New Stiffener" dialog box (Image 02). Specify the elements belonging to the stiffener. In the case of angles, trapezoidal stiffeners, and so on, the stiffener is represented by several elements. If the stiffener represents a cross-section from the cross-section library, it must be divided into the elements first.

2 Entering Stiffeners in Dialog Box and Table

The panel shown in Image 03 includes Elements 1 through 3. Elements 8, 9 and Elements 10, 11 are connected to the panel. However, they are not defined as stiffeners, so the message shown in Image 01 is displayed. It is necessary to define Elements 8, 9 and Elements 10, 11 as stiffeners in Table "1.8 Stiffeners" or in the "New Stiffener" dialog box (Image 04).

3 Panel

4 Stiffeners