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Volume 40 Issue 11
Nov.  2014
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Journal of Beijing University of Aeronautics and Astronautics  > 2014  >  40(11): 1537-1542.
Li Weidong, Wan Min. Press bending equivalent simulation model of integrally reinforced panel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(11): 1537-1542. doi: 10.13700/j.bh.1001-5965.2013.0726(in Chinese)
Citation: Li Weidong, Wan Min. Press bending equivalent simulation model of integrally reinforced panel[J]. Journal of Beijing University of Aeronautics and Astronautics, 2014, 40(11): 1537-1542. doi: 10.13700/j.bh.1001-5965.2013.0726(in Chinese)
shu

Press bending equivalent simulation model of integrally reinforced panel

doi: 10.13700/j.bh.1001-5965.2013.0726

  • School of Mechanical Engineering and Automation, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 30 Dec 2013
  • Publish Date: 20 Nov 2014
    Abstract
  • The elastic and plastic deformation distribution of skin and stiffener were analyzed during press bending for integrally reinforced panel with inside ribs. According to the characteristics of plastic deformation on inside stiffener and mainly elastic deformation on skin, a geometrical equivalent method was proposed which simplified the skin component to stiffener with virtual material properties. The calculative formula of equivalent coefficient was educed based on inertia moment. For complicated integrally reinforced panel, the establishment process and calculative method of equivalent model were also introduced. The finite element analysis and experiment of Ⅰ -style single stiffener and gridding stiffener panels were carried out. The comparisons on efficient and precision between detailed model and equivalent model were made and verified by experimental data. The equivalent model for press bending was proved to be reliable and highly efficient which can be used for simulation and parameter optimization of large complicated gridding integrally reinforced panel.

     

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