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Analysis of multiple-core sandwich cylindrical shells using a sublaminate formulation

机译：使用该子酰胺制剂分析多芯夹心圆柱壳

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摘要

An advanced modelling approach is presented for the linear analysis of multilayered cylindrical shells. It relies on the combined use of a sublaminate shell formulation along with the Ritz method. The approach is particularly suitable for the analysis of sandwich shells, and can be naturally applied for studying non-conventional configurations characterized by the presence of multiple cores. The formulation relies upon a displacement-based approach and makes it possible the analysis of thin and thick configurations, without restrictions regarding the shallowness of the shell. The quality of the predictions is assessed by comparison against 3D solutions, and the advantages offered by current modeling approach are highlighted in terms of required theory-related degrees of freedom. The flexibility of the formulation is exploited to illustrate the analysis of a triple-core sandwich panel, giving evidence of the advantages offered by the proposed approach for modeling shells characterized by an arbitrary degree of complexity. Novel results are presented for future benchmarking purposes.
机译：提出了一种高级建模方法，用于多层圆柱形壳的线性分析。它依赖于共聚使用与ritz方法一起使用。该方法特别适用于夹层壳的分析，并且可以自然地应用于研究以多个芯存在特征的非常规配置。该配方依赖于基于位移的方法，并使得可以分析薄和厚的配置，而无需限制壳体的浅滩。通过针对3D解决方案进行比较来评估预测的质量，并根据所需的理论相关的自由度来突出显示当前建模方法的优点。开采配方的灵活性以说明三核夹层面板的分析，提供了所提出的方法所提供的优势，用于建模以任意复杂程度为特征的壳体。为未来的基准测试提供了新的结果。

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  • 来源
    《Composite Structures》 |2019年第10期|111067.1-111067.16|共16页
  • 作者

    Gorgeri A.; Vescovini R.; Dozio L.;

  • 作者单位

    Politecn Milan Dipartimento Sci & Tecnol Aerosp Via La Masa 34 I-20156 Milan Italy;

    Politecn Milan Dipartimento Sci & Tecnol Aerosp Via La Masa 34 I-20156 Milan Italy;

    Politecn Milan Dipartimento Sci & Tecnol Aerosp Via La Masa 34 I-20156 Milan Italy;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Sandwich; Multiple-core; Shells; Sublaminate; Unified formulation; Ritz method;

    机译：三明治;多核;贝壳;Sublamate;统一配方;RITZ方法;

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