Elastic buckling of stiffened plates by the finite element method
- Univ. of Wales, Cardiff (United Kingdom). Div. of Structural Engineering
The finite element method is used to obtain the elastic buckling loads of stiffened plates. The plates are modeled by rectangular plate elements and the stiffeners which are rectangular in cross section are modeled by exact beam elements. Eccentrically located stiffeners as well as stiffeners having centroids coinciding with the middle surface of the plates are considered. The effect of the flexural rigidity of the stiffeners relative to that of the plates on the buckling load is investigated. Square plates simply supported along the four edges are considered when subjected to uniform uniaxial compressive loads. Further investigations are carried out to examine the effect of the number of stiffeners and their locations on the buckling load and the mode of buckling. Stiffeners positioned in the direction of the applied compressive load or in the transverse direction are also considered. The method used in the calculation of the buckling load is the subspace iteration technique. This method is shown to produce acceptable results for the eigenvalues and the associated eigenvectors of the transidental equations for the combined stiffness and geometric matrices for the stiffened plates. The buckling loads as well as the modes of buckling are determined and compared where possible with existing solutions.
- OSTI ID:
- 94413
- Report Number(s):
- CONF-950116-; ISBN 0-7918-1293-6; TRN: IM9538%%387
- Resource Relation:
- Conference: 1995 American Society of Mechanical Engineers (ASME) energy sources technology conference and exhibition, Houston, TX (United States), 29 Jan - 1 Feb 1995; Other Information: PBD: 1995; Related Information: Is Part Of Structural dynamics and vibration 1995. PD-Volume 70; Ovunc, B.A. [ed.] [Univ. of Southwestern Louisiana, Lafayette, LA (United States)]; Esat, I.I. [ed.] [Brunel Univ., Uxbridge (United Kingdom)]; Sabir, A.B. [Univ. of Wales, Cardiff (United Kingdom)]; Karadag, V. [ed.] [Technical Univ. of Istanbul (Turkey)]; PB: 251 p.
- Country of Publication:
- United States
- Language:
- English
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