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Effect of initial imperfections in geometry on the elastic-plastic stability of a thin annular plate

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Abstract

In this paper, Neale's generalized variational principle about incremental boundary-value problems is utilized to study the effect of initial imperfections in geometry on the critical loads of elastic-plastic buckling of thin annular plates. The calculations show that, if the effect of initial imperfections in geometry is taken into account in the solutions by J2 incremental theory, the results are very close to the bifurcational buckling loads of the perfect annular plates according to the plastic deformation theory.

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Authors and Affiliations

  1. The Engineering College of the Railway Units of the P.L.A., Shijiazhuang

    Jiang Zhi-qing

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  1. Jiang Zhi-qing
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Communicated byOuyang Chang.

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Zhi-qing, J. Effect of initial imperfections in geometry on the elastic-plastic stability of a thin annular plate. Appl Math Mech 4, 559–570 (1983). https://doi.org/10.1007/BF01874668

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  • DOI: https://doi.org/10.1007/BF01874668

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