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Evaluation on the interval values of tolerance fit for the composite bolted joint

机译：复合螺栓连接公差配合的间隔值评估

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摘要

The bolted joint has frequently been used to join different components together for the composite materials. However, the effect of tolerance fit on mechanical properties of the composite bolted joint is still ambiguous. In this paper, a three-dimensional numerical model is established and validated by reference experiment for the single-lap composite bolted joint. Then the High Dimension Model Representation (HDMR) using Sobol method is employed to analyse the global sensitivity of tolerance fit, bolt clamping force and friction of contact interfaces. The sensitivity index indicates that the tolerance of composite hole is the most crucial parameter for the mechanical properties of composite bolted joint. Finally, the interval values of tolerance behaviours between bolt shank and laminate hole are investigated numerically based on Six Sigma analysis. The tolerance is analysed by considering the influences of perfect fit, clearance fit and interference fit on mechanical properties. This work provides a meaningful reference for selecting the tolerance fit for the composite bolted joint.
机译：螺栓连接经常用于将不同的组件连接在一起以形成复合材料。但是，公差配合对复合螺栓连接的机械性能的影响仍然不清楚。本文建立了三维数值模型，并通过参考实验对单搭接复合螺栓连接进行了验证。然后采用Sobol方法进行高维模型表示（HDMR），以分析公差配合，螺栓夹紧力和接触界面摩擦的整体灵敏度。灵敏度指标表明，复合材料孔的公差是复合螺栓连接机械性能的最关键参数。最后，基于六西格玛分析，数值研究了螺栓柄与叠层孔之间的公差行为的间隔值。通过考虑完美配合，间隙配合和过盈配合对机械性能的影响来分析公差。这项工作为选择复合螺栓连接的公差配合提供了有意义的参考。

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  • 来源
    《Composite Structures》 |2018年第12期|628-636|共9页
  • 作者

    Chen Chao; Hu Dean; Liu Qiming; Han Xu;

  • 作者单位

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

    Hunan Univ, State Key Lab Adv Design & Mfg Vehicle Body, Changsha 410082, Hunan, Peoples R China;

  • 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

    Composite bolted joint; Tolerance fit; Global sensitivity analysis; Six Sigma analysis;

    机译：复合螺栓连接;公差配合;整体灵敏度分析;6 Sigma分析;

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