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Effect of Higher-Harmonic Deflection Components on the Creep Buckling of Columns
Published online by Cambridge University Press: 07 June 2016
Summary
The influence of higher-harmonic deflection components on the creep-buckling characteristics of an idealised H-section column is investigated. The creep properties of the material of the column are defined by a simple power-function creep law. The results show that higher-harmonic deflection components reduce the column lifetime significantly only when their initial amplitudes, as well as the initial amplitude of the first harmonic component, are very large. Furthermore, it is shown that second-harmonic components have a much smaller effect on the column behaviour than do third-harmonic components.
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- Copyright © Royal Aeronautical Society. 1957