| Autor: |
Venkateshwarlu, N., Akella, Suresh, Reddy, T. Kishen Kumar, Rao, G. Venkateswara |
| Předmět: |
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| Zdroj: |
IUP Journal of Structural Engineering; Oct2015, Vol. 8 Issue 4, p47-67, 21p |
| Abstrakt: |
The paper investigates thermal buckling and post-buckling of columns of variable cross-section along the length. Two types of variable cross-section columns, namely, sinusoidally and linearly varying cross-sections, are considered. The geometry of the cross-section is taken as symmetric about the midpoint of the length of the columns. The thermal buckling and post-buckling loads, which are the mechanical equivalent of the uniform compressive load developed when the column is subjected to high temperature, are evaluated by applying the classical Rayleigh-Ritz (RR) method. The variable cross-section of the columns is quantified through an easy-to-recognize taper ratio. The numerical results in the form of the thermal buckling loads and the thermal post-buckling loads are obtained for different taper ratios and the reference central deflection parameters. The numerical results are found to be reliable when compared with similar results of the limiting cases and from the logical physical trends in the absence of the corresponding results for the definition of the taper ratios used in this study. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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