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Effective breadth/web concept for elastic coupled buckling analysis in flat-bar stiffened plates
Highlights To study interaction of torsional-web-plate buckling in flat bar stiffened plates. To propose a method for coupled web-plate-torsional buckling analysis. To check the accuracy of rule-based expressions for buckling analysis of stiffened plates.
Abstract Stiffened plate buckles in different modes, including web/flange buckling, torsional buckling, plate buckling and interaction of these. Design codes ignore interaction of different buckling modes and each mode is treated separately. By introducing an effective breadth/web concept, coupled plate-torsional-web buckling in flat-bar stiffened plates is simply analyzed by torsional buckling analysis of equivalent cross section. The model provides a tool that is more accurate than existing design codes, and more efficient than finite element method. An expression for effective breadth/web of flat-bar stiffened plate has been derived and Euler stress for coupled buckling mode in flat-bar stiffened plate are calculated and compared with finite element method and rule-base equation. It is found that this method has better agreement irrespective of dominant mode of buckling.
Effective breadth/web concept for elastic coupled buckling analysis in flat-bar stiffened plates
Highlights To study interaction of torsional-web-plate buckling in flat bar stiffened plates. To propose a method for coupled web-plate-torsional buckling analysis. To check the accuracy of rule-based expressions for buckling analysis of stiffened plates.
Abstract Stiffened plate buckles in different modes, including web/flange buckling, torsional buckling, plate buckling and interaction of these. Design codes ignore interaction of different buckling modes and each mode is treated separately. By introducing an effective breadth/web concept, coupled plate-torsional-web buckling in flat-bar stiffened plates is simply analyzed by torsional buckling analysis of equivalent cross section. The model provides a tool that is more accurate than existing design codes, and more efficient than finite element method. An expression for effective breadth/web of flat-bar stiffened plate has been derived and Euler stress for coupled buckling mode in flat-bar stiffened plate are calculated and compared with finite element method and rule-base equation. It is found that this method has better agreement irrespective of dominant mode of buckling.
Effective breadth/web concept for elastic coupled buckling analysis in flat-bar stiffened plates
Rahbar-Ranji, Ahmad (author)
Engineering Structures ; 80 ; 316-322
2014-09-09
7 pages
Article (Journal)
Electronic Resource
English
Effective breadth/web concept for elastic coupled buckling analysis in flat-bar stiffened plates
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