SPATIAL STABILITY OF NONSYMMETRIC THIN-WALLED CURVED BEAMS. II: NUMERICAL APPROACH

In a companion paper, for spatial stability of nonsymmetric thin-walled curved beams, a general formulation was derived based on a displacement field considering the second-order terms of semitangential rotations. Closed-form solutions were newly derived for in-plane and out-of-plane buckling of simply supported curved beams with monosymmetric sections subjected to pure bending or uniform compression. This paper, to get numerical solutions for the buckling of thin-walled curved beams subjected to general loadings, develops finite-element procedures using thin-walled curved beam elements and straight frame elements with nonsymmetric sections. It presents numerical examples for the spatial buckling of doubly symmetric, monosymmetric, and nonsymmetric thin-walled circular beams and compares them with previously published solutions to illustrate the accuracy and the practical usefulness of the analytical solutions and numerical procedures.

Language

  • English

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Filing Info

  • Accession Number: 00794063
  • Record Type: Publication
  • Contract Numbers: DSWA01-97-C-0171, CMS-9800136, 99M6
  • Files: TRIS
  • Created Date: Jun 23 2000 12:00AM