Postbuckling dynamics of struts as related to their loading devices

Journal Article (Journal Article)

This paper examines the linear dynamics of axially compressed pin-ended 'perfect' inextensional struts. Relationships are established between the natural frequencies of small oscillations about any equilibrium configuration (unbuckled and postbuckled) and axial compression for systems characterized by a stable-symmetric point of bifurcation. The general result that the initial slope of the postbuckling frequency squared curve is half the prebuckling value is shown to hold for both dead and semi-rigid loading, provided the appropriate control parameter is used. For the latter, this control is an end displacement rather than the actual load experienced by the structure: use of the load may of course be desirable, but the universal slope is then lost. © 1986.

Full Text

Duke Authors

Cited Authors

  • Virgin, LN

Published Date

  • January 1, 1986

Published In

Volume / Issue

  • 8 / 2

Start / End Page

  • 127 - 133

International Standard Serial Number (ISSN)

  • 0141-0296

Digital Object Identifier (DOI)

  • 10.1016/0141-0296(86)90028-3

Citation Source

  • Scopus