Wydział Mechaniczny / Faculty of Mechanical Engineering / W1

Stały URI zbioruhttp://hdl.handle.net/11652/1

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20091

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Autorsearch.filters.applied.operator.equals: search.filters.author.Kowal-Michalska, KatarzynaTematsearch.filters.applied.operator.equals: search.filters.subject.naprężenie krytyczne

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  • Pozycja
    Stability and load carrying capacity of multi-cell thin-walled columns of rectangular cross-sections
    (Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej, 2009) Królak, Marian; Kowal-Michalska, Katarzyna; Mania, Radosław J.; Świniarski, Jacek
    The paper concerns theoretical, numerical and experimental analysis of the stability and ultimate load of multi-cell thin-walled columns of rectangular and square cross-sections subjected to axial compression (uniform shortening of the column). The theoretical analysis deals with the local and global stability of multi-cell orthotropic columns of a rectangular profile with rectangular cells. It has been shown that for a multi-cell column made of the same material and having the same cross-section area, the value of local buckling stress of the column walls grows rapidly with an increase of the cell number. The experiment conducted for isotropic columns has also proved a significant growth of the ultimate load with the increase of the cell number. The paper gives some conclusions which can be useful in design of thin-walled box columns.