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首页> 外文期刊>Composite Structures >An high order Mixed Interpolation Tensorial Components (MITC) shell element approach for modeling the buckling behavior of delaminated composites
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An high order Mixed Interpolation Tensorial Components (MITC) shell element approach for modeling the buckling behavior of delaminated composites

机译：用于分层复合材料屈曲行为建模的高阶混合插值张量分量（MITC）壳单元方法

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摘要

This paper describes the experimental and numerical studies carried out on delaminated fiberglass epoxy resin laminates made-up by different fabrication methods, namely by vacuum infusion and prepreg. While the tested specimens were originally intended for the assessment of buckling behavior of composite laminates of wind turbine blades, results were found valuable for the marine industry as well, because similar laminates are used for the hull shell and stiffeners. Systematic calculations were carried out to assess the effects of an embedded delamination on the buckling load, varying the size and through thickness position of the delamination. Different finite element modeling strategies were considered and validated against the experimental results. The one applying the 9 nodes MITC shell elements was found matching the experimental data despite failure modes were different for the two fabrication methods.
机译：本文介绍了通过不同的制造方法（即真空灌注和预浸料）对分层玻璃纤维环氧树脂层压板进行的实验和数值研究。尽管测试的样品最初旨在评估风力涡轮机叶片的复合材料层压板的屈曲性能，但结果也发现对海洋工业也很有价值，因为类似的层压板用于船体外壳和加劲肋。进行了系统计算，以评估嵌入分层对屈曲载荷的影响，并改变分层的大小和厚度位置。考虑了不同的有限元建模策略，并针对实验结果进行了验证。尽管两种制造方法的失效模式不同，但发现使用9个节点MITC壳单元的一个与实验数据匹配。

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  • 来源
    《Composite Structures》 |2014年第2期|657-666|共10页
  • 作者

    Marco Gaiotti; Cesare M. Rizzo; Kim Branner; Peter Berring;

  • 作者单位

    Universita degli Studi di Cenova, Scuola Politecnica - DITEN, Via Montallegro 1, Genova, Italy;

    Universita degli Studi di Cenova, Scuola Politecnica - DITEN, Via Montallegro 1, Genova, Italy;

    Technical University of Denmark, Department of Wind Energy, Frederiksborgvej 399, Roskilde, Denmark;

    Technical University of Denmark, Department of Wind Energy, Frederiksborgvej 399, Roskilde, Denmark;

  • 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

    Composites; Buckling; Tests; FEM modeling; Delamination;

    机译：复合材料;屈曲;测试;有限元建模分层;

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