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Geometrically Non-Linear Creep Buckling of Bars

  • Michał Życzkowski
Part of the IUTAM Symposia book series (IUTAM)

Abstract

There exist two fundamental approaches to the theory of creep buck ling. One, commonly used, consists of analyzing the deflections as a function of time (technical buckling); the bar is initially curved or eccentrically loaded and no problem of stability is formulated (N. J. Hoff [3], J. A. H. Hult [5], A. R. Rzhanitsyn [14,15] and others). The other approach, proposed by G. N. Rabotnov and S. A. Shestebikov [12], uses a dynamical criterion of stability of a straight bar. Recently S. A. Shestebikov [16] formulated a new stability criterion for a curved bar, connected with the sign of acceleration. This criterion may be used for unsteady creep; the case, of steady creep is always that of instability, according to Shestebikov’s criterion.

Keywords

Collocation Method Dimensionless Time Deflection Curve Initial Deflection Auxiliary Graph 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag OHG., Berlin/Göttingen/Heidelberg 1962

Authors and Affiliations

  • Michał Życzkowski
    • 1
  1. 1.Technical University and Polish Academy of SciencesKrakówPoland

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