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An analytical model for the strength prediction of hybrid (bolted/bonded) composite joints

机译:混合(螺栓/粘结)复合接头强度预测的解析模型

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摘要

In some applications, aircraft manufacturers plan to use the interface material (adhesive joint) as a structural part to increase mechanical joint efficiency. The design and dimensioning of hybrid joints would therefore benefit from a time-efficient model allowing designers to test and compare various proposals, and thus optimize the assemblies. This paper proposes an analytical model as an alternative to complex finite element models. The model includes the nonlinear behaviour required to evaluate the bolt load transfer contribution up to failure. Each expected failure mode is taken into account by using a multi-criteria approach in which each related criterion is identified from bonded or bolted tests. The ability of the analytical model to predict load transfer in bolt and adhesive joints is established by comparing analytical model results to those obtained by finite element analysis. The whole model is validated experimentally in terms of joint efficiency prediction for two different hole diameter-to-width ratios.
机译:在某些应用中,飞机制造商计划将界面材料(粘合接头)用作结构部件,以提高机械接头效率。因此,混合接头的设计和尺寸标注将受益于高效的模型,该模型使设计人员可以测试和比较各种建议,从而优化装配。本文提出了一种分析模型,以替代复杂的有限元模型。该模型包括评估直至破坏的螺栓载荷传递贡献所需的非线性行为。通过使用多准则方法将每种预期的失效模式考虑在内,在这种方法中,从粘合或螺栓连接测试中识别出每个相关准则。通过将分析模型结果与通过有限元分析获得的结果进行比较,可以建立分析模型预测螺栓和粘合接头中载荷传递的能力。整个模型在两种不同的孔径和宽度比的联合效率预测方面通过实验进行了验证。

著录项

  • 来源
    《Composite Structures》 |2013年第3期|252-260|共9页
  • 作者单位

    Universite de Bordeaux, Institut de Mecanique et d'Ingenierie de Bordeaux, 75 rue Naudet, CS 10207, 33175 Gradignan Cedex, France;

    Universite de Bordeaux, Institut de Mecanique et d'Ingenierie de Bordeaux, 75 rue Naudet, CS 10207, 33175 Gradignan Cedex, France;

    Universite de Bordeaux, Institut de Mecanique et d'Ingenierie de Bordeaux, 75 rue Naudet, CS 10207, 33175 Gradignan Cedex, France;

    Universite de Bordeaux, Institut de Mecanique et d'Ingenierie de Bordeaux, 75 rue Naudet, CS 10207, 33175 Gradignan Cedex, France;

  • 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

    bolted joints; hybrid joints; load transfer; failure criteria;

    机译:螺栓连接;混合接头负荷转移失败标准;

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