考虑装配间隙的双搭接螺栓连接剪切刚度的解析求解方法

Jianfeng Kou, Fei Xu, Xiaoyu Zhang, Wei Xie, Wei Feng

科研成果: 期刊稿件文章同行评审

3 引用 (Scopus)

摘要

The joint stiffness is an important parameter in the design of composite bolted joints and is influenced largely by the bolt-hole clearance. Aiming at the elastic foundation stiffness kc *, an analytical expression was derived by introducing Liu Cai-Shan's inner cylindrical contact model. This analytical expression can take account of the bolt-hole clearance and it shows that kc * deceases with the increase of clearance. Aiming at the nail-head restraint coefficient kr, an approximate expression was obtained by the strain energy method from a reasonable stress distribution hypothesis. Based on kc * and kr, the analytical solution of the joint stiffness was derived from an elastic foundation beam model. The load-displacement curves of double-lap bolted joints predicted by the analytical method were validated by 3-D detailed FE-models. Finally, the mechanical mechanism of the clearance influence on the joint stiffness was analyzed by finite element method. Moreover, the influences of the clearances form 1-300 μm were given quantitatively by the analytic method.

投稿的翻译标题Analytical solution of shear stiffness for double-lap bolted joints with clearances
源语言繁体中文
页(从-至)1510-1517
页数8
期刊Fuhe Cailiao Xuebao/Acta Materiae Compositae Sinica
35
6
DOI
出版状态已出版 - 1 6月 2018

关键词

  • Analytical method
  • Beam on elastic foundation
  • Bolted joints
  • Clearance
  • Cylindrical contact
  • Stiffness

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