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Buckling of piecewise member composed of steel and high-strength materials in axial compression.
- Source :
-
Thin-Walled Structures . Jan2017, Vol. 110, p62-74. 13p. - Publication Year :
- 2017
-
Abstract
- The elastic buckling load of an axially compressed piecewise member was derived under various ideal boundary conditions based on the differential element method; then, the result was simplified for a symmetrical member. The theoretical results were found to be consistent with existing formulas for the elastic buckling load of uniform members. Then, the elasto-plastic buckling of an axially compressed piecewise member composed of steel and elastic materials was investigated and found to be quite different from that of a pure steel member, and a theoretical analysis approach was developed. In elasto-plastic buckling analysis, the load-bearing capacity of the steel section in the ultimate state is determined considering initial imperfections and steel hardening. Furthermore, the symmetric method for obtaining the load-bearing capacity of this member was obtained based on the ultimate state of the critical section, which is simple and reparative for design. The theoretical results of the elasto-plastic buckling analysis were consistent with experimental results, therein obtaining an average error of 4%. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 02638231
- Volume :
- 110
- Database :
- Academic Search Index
- Journal :
- Thin-Walled Structures
- Publication Type :
- Academic Journal
- Accession number :
- 120016962
- Full Text :
- https://doi.org/10.1016/j.tws.2016.10.008