Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 14 of 14 for “"plate buckling"”.
-
Optimization of stiffener placement for thin plate buckling
Stiffened plates are a common component in many structures, from plate girders and box girder bridges to ships and offshore structures. Plates and stiffened plates buckle into doubly curved surfaces, substantially complicating the mathematics for an analytic solution. Finite element methods allow …
-
Elastic buckling solutions for thin-walled metal columns with perforation patterns
… strip methods for use in predicting elastic buckling strength of cold-formed steel columns. These methods were developed by examining elemental behavior of cross-sections in eigen-buckling analyses and validated using a large database of finite element rack-type columns with perforation …
-
Consequences of Simultaneous Local and Overall Buckling in Stiffened Panels
… thesis improved expressions for elastic local plate buckling and overall panel buckling of uniaxially compressed T-stiffened panels are developed and validated with 55 ABAQUS eigenvalue buckling analyses of a wide range of typical panel geometries. These two expressions are equated to derive a …
-
The buckling and post-buckling behaviour of simply supported rectangular plates with centrally located circular holes
This thesis describes an investigation into the buckling, post-buckling behaviour and collapse of simply supported square and rectangular plates with centrally located circular holes. The review of the current literature is preceded by a brief description of the approximate methods of plate …
-
Parametric buckling analyses of plates
Classical methods for solving plate buckling problems involve using different forms of solution on case by case basis. In place of this approach, this thesis presents a novel single form equation and the parameters required to account for the interaction of geometry, boundary conditions and …
-
Identification and investigation of local optima in aerospace structural design
… identified. The theory of continuous rectangular plates was used to explain the phenomena. The second problem considered buckling of a wing rib. A PCL code was written to obtain the rib buckling factors as the position of the center of a square cutout was varied within a constrained area. The rib …
-
Enhancing Progressive Collapse Resistance of Steel Building Frames Using Thin Infill Steel Panels
… The first model explicitly models the infill plates to capture the plate buckling behavior. The second model known as strip model represents the infill panels as diagonal strips. In addition to the FE models, a plastic analysis model derived from the prior research on seismically designed …
-
The effect of stiffener dimensions on the buckling of webplates subjected to bending
… that of the effect of stiffener dimension on the buckling of webplate subjected to bending. In Chapter one the problem of buckling is introduced generally and various examples of the use of horizontally stiffened webplates are mentioned. The theoretical background to the problem of the stability …
-
Geometry of Creased Shell Structures
… explored using differential geometry and simple plate buckling analogy where a good agreement with finite element models are observed. This reveals that a curved crease introduces mechanical frustration in one way or the other. The finite element solutions capture the many nuances in geometry of …
-
Study of the I-35W Highway Bridge Collapse Mechanism
… load carrying capacity of the steel gusset plates connecting the main truss members at four specific nodes. Permanent deformations of the members in proximity to these nodes were documented and a surveillance video camera recorded the collapse event in a major section of the structure. The …
-
Experimental Study of Ring-Shaped Steel Plate Shear Walls
A new type of steel plate shear wall has been devised which resists out-of-plane buckling without requiring stiffeners. The ring-shaped steel plate shear wall (RS-SPSW) includes a web plate that is cut with a pattern of holes leaving ring-shaped portions of steel connected by diagonal links. The …
-
Computational simulation and analytical development of Buckling Resistant Steel Plate Shear Wall (BR-SPSW)
Steel plate shear walls (SPSWs) are an attractive option for lateral load resisting systems for both new and retrofit construction. They, however, present various challenges that can result in very thin web plates and excessively large boundary elements with moment connections, neither of which is …