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Acta Mechanica Solida Sinica

, Volume 26, Issue 5, pp 500–513 | Cite as

Jumping Instabilities in the Post-Buckling of a Beam on a Partial Nonlinear Foundation

  • Yin Zhang
  • Kevin D Murphy
Article

Abstract

Mode jumping is an instability phenomenon in the post-buckling region, which causes a sudden change in the equilibrium configuration and is thus harmful to structure. The configuration of a partial elastic foundation can directly induce mode coupling from the buckling stage and through the whole post-buckling region. The mode coupling effect due to the configuration of partial foundation on mode jumping is investigated and demonstrated to be an important factor of determining mode jumping. By properly choosing the partial elastic foundation configuration, mode jumping can be avoided.

Keywords

instability mode jumping tertiary jumping buckling beam elastic foundation 

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics and Technology 2013

Authors and Affiliations

  1. 1.State Key Laboratory of Nonlinear Mechanics (LNM)Institute of Mechanics, Chinese Academy of SciencesBeijingChina
  2. 2.Department of Mechanical EngineeringUniversity of ConnecticutStorrsUSA

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