Elastic buckling solutions for thin-walled metal columns with perforation patterns
Smith, Frank Harrison
MetadataShow full item record
Presented are approximate finite 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 patterns. The influence of perforations is accounted by reduced thicknesses related to the plate buckling coefficient and transverse web rotational stiffness in the prediction of local and distortional buckling respectively. Global buckling prediction including the influence of perforations uses critical elastic loads of an unperforated section multiplied by the ratio of weighted to gross cross-sectional moment of inertia for flexural buckling and the ratios of weighted to gross cross-sectional warping torsion constant and weighted to gross St. Venant torsional constant for flexural-torsional buckling. Concern for end-user was given and methods are presented in a way for incorporation into governing design standards. Data to support these findings are available at http://hdl.handle.net/10919/23797
- Masters Theses 
Showing items related by title, author, creator and subject.
Smith, Frank H. (2013-09-17)Presented is the data set used in the development and validation of approximate finite strip methods for use in predicting elastic buckling strength of cold-formed steel columns including perforation patterns. The influence ...
Ghosh, Biswarup (Virginia Tech, 2003-04-18)In this 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 ...
Sun, Miao (Virginia Tech, 2006-11-16)This study focuses on the improvement of the axial buckling capacity of elliptical composite cylinders through the use of a circumferentially-varying lamination sequence. The concept of varying the lamination sequence ...