Design and Analysis of Stiffened Plate

Plates with stiffener are used in many fields of engineering. These stiffened plates are used to strengthen large structures, and these stiffened plate consists large stiffeners like longitudinal stiffeners and transverse stiffeners is to reduce buckling and bending and also to avoid damages on plates. These structures avoid damage to dynamic load and collision. Plates with stiffener are in the form curved structures or flat structures. Flat structures are used in automobile industries, ship industries and also used in aircraft industries to make wings of an aircraft. Curved structures are used in aircraft industries to build fuselage that is main body of an aircraft. In plates to determine whether it is thick or thin only if width to thickness ratio of plate is larger than 100 then it is very thin, if ratio is with 20 to 100 than it is moderately thin, if ratio is with 3 to 20 it is thick, if ratio is more than 3 then is very thick plate. Buckling stress is depend upon the type of boundary condition which we used in the structure while finding stress. Modal analysis is also done to determine vibration characteristics such as natural frequency.