Abstract
Abstract In this work, we present analytic formulas for calculating the critical buckling states of some plastic axial columns of constant cross-sections. The associated critical buckling loads are calculated by Euler-type analytic formulas and the associated deformed shapes are presented in terms of generalized trigonometric functions. The plasticity of the material is defined by the Hollomon's power-law equation. This is an extension of the Euler critical buckling loads of perfect elastic columns to perfect plastic columns. In particular, critical loads for perfect straight plastic columns with circular and rectangular cross-sections are calculated for a list of commonly used metals. Connections and comparisons to the classical result of the Euler-Engesser reduced-modulus loads are also presented.
Original language | English |
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Article number | 2675 |
Pages (from-to) | 69-76 |
Number of pages | 8 |
Journal | Mechanics Research Communications |
Volume | 47 |
DOIs | |
Publication status | Published - Aug 7 2013 |
Keywords
- Axial plastic columns
- Critical buckling load
- High strength metals
- Hollomon's law
- Work-hardening
ASJC Scopus subject areas
- Civil and Structural Engineering
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering