Bonded Hat Stiffened Concept

[oseresta]

What does each of this variable means

1. Open Span [Span between two consecutive hat stiffener top flange (on either side) ends]
2. Closed Span [Span between the webs of the same stiffener]
3. Spacing Span

I couldnt find any description of the bonded hat geometry referred in the failure tab.

Thanks

[James]

These objects are explained in more detail in the local buckling .HME document

http://hypersizer.com/help/Content/Failure/buck-local.php

Please email us to get the username and password to download this document from our online help system.

For the analysis of a hat stiffened panel:
1. Open span - Top facesheet between the flanges of two adjacent stiffeners
2. Closed span - Top facesheet between the flanges of the same stiffener
3. Spacing span - open span + bonded combo. This is basically all the skin not including the closed span.

Let me know if this is unclear.