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首页> 外文期刊>Mathematical Problems in Engineering >An Analytical Insight into the Buckling Paradox for Circular Cylindrical Shells under Axial and Lateral Loading
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An Analytical Insight into the Buckling Paradox for Circular Cylindrical Shells under Axial and Lateral Loading

机译：轴向和横向载荷作用下圆柱圆柱壳屈曲悖论的解析分析

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摘要

A large number of authors in the past have concluded that the flow theory of plasticity tends to overestimate significantly the buckling load for many problems of plates and shells in the plastic range, while the deformation theory generally provides much more accurate predictions and is consequently used in practical applications. Following previous numerical studies by the same authors focused on axially compressed cylinders, the present work presents an analytical investigation which comprises the broader and different case of nonproportional loading. The analytical results are discussed and compared with experimental and numerical findings and the reason for the apparent discrepancy on the basis of the so-called "buckling paradox" appears once again to lay in the overconstrained kinematics on the basis of the analytical and numerical approaches present in the literature.
机译：过去，许多作者得出结论，对于塑性范围内的板和壳的许多问题，可塑性的流动理论趋于明显高估屈曲载荷，而变形理论通常提供更准确的预测，因此被用于实际应用。在同一作者先前针对轴向压缩圆柱体进行的数值研究之后，本工作提出了一种分析研究，其中包括范围广泛且不等比例的非比例载荷情况。对分析结果进行了讨论，并与实验和数值研究结果进行了比较，并且在所谓的“屈曲悖论”的基础上出现明显差异的原因再次基于当前的分析和数值方法而出现在过度约束的运动学中。在文学中。

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  • 来源
    《Mathematical Problems in Engineering》 |2015年第10期|514267.1-514267.10|共10页
  • 作者

    Shamass Rabee; Alfano Giulio; Guarracino Federico;

  • 作者单位

    Brunel Univ, Dept Mech Aerosp & Civil Engn, Uxbridge UB8 3PH, Middx, England.;

    Brunel Univ, Dept Mech Aerosp & Civil Engn, Uxbridge UB8 3PH, Middx, England.;

    Univ Naples Federico II, Dept Struct Engn, I-80125 Naples, Italy.;

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