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Stiffened Panels

Stiffened Panels

(OP)
What do you mean by stiffened panel? and what are its functions in an aircraft?

RE: Stiffened Panels

Typically, it means that a panel was structurally reinforced and provides some sort of structural strength as its function.

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Of course I can. I can do anything. I can do absolutely anything. I'm an expert!
There is a homework forum hosted by engineering.com: http://www.engineering.com/AskForum/aff/32.aspx

RE: Stiffened Panels

"stiffened panel" = a panel with stiffeners ...

there are many different reasons to stiffen a panel ... to help the panel carry axial loads (along the stiffeners) or bending loads; or to increase the shear allowable (using the stiffeners to break-up the panel, so called panel breakers).

I'd start with doing my own research (google "stiffened panels" or the like, read aircraft design textbooks (Michael Niu), and come back with a more specific question.

another day in paradise, or is paradise one day closer ?

RE: Stiffened Panels

What shape does the panel have and in what capacity is it being made "stiffer"?

For example, a flat metal panel can be stiffened by adding flanges around its perimeter, by forming beads across its length/width, or by attaching structures such as ribs or stringers. A composite panel can be made stiffer by adding a honeycomb or foam core. Panels are often stiffened to increase their buckling capacity, or to alter their structural frequency to improve NVH characteristics.

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