Stiffened Panels Stiffened Panels awesomesash (Aerospace) (OP) 21 May 15 01:12 What do you mean by stiffened panel? and what are its functions in an aircraft? RE: Stiffened Panels IRstuff (Aerospace) 21 May 15 01:51 Typically, it means that a panel was structurally reinforced and provides some sort of structural strength as its function. TTFN FAQ731-376: Eng-Tips.com Forum Policies [IMG http://tinyurl.com/7ofakss] Need help writing a question or understanding a reply? forum1529: Translation Assistance for Engineers 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 rb1957 (Aerospace) 21 May 15 13:00 "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 tbuelna (Aerospace) 23 May 15 08:19 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.