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Theoretical prediction on corrugated sandwich panels under bending loads

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Abstract

In this paper, an aluminum corrugated sandwich panel with triangular core under bending loads was investigated. Firstly, the equivalent material parameters of the triangular corrugated core layer, which could be considered as an orthotropic panel, were obtained by using Castigliano’s theorem and equivalent homogeneous model. Secondly, contributions of the corrugated core layer and two face panels were both considered to compute the equivalent material parameters of the whole structure through the classical lamination theory, and these equivalent material parameters were compared with finite element analysis solutions. Then, based on the Mindlin orthotropic plate theory, this study obtain the closed-form solutions of the displacement for a corrugated sandwich panel under bending loads in specified boundary conditions, and parameters study and comparison by the finite element method were executed simultaneously.

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Acknowledgements

The financial support from the National Natural Science Foundation of China (Grant 11572122) is acknowledged. Meanwhile, the Scientific Research Foundation of Huaihua University (Grant HHUY2017-02), 111 Project (Grant B16015), Stake Key Laboratory of Mechanical Structural Strength and Vibration (Grant SV2017-KF-20) and Joint Centre for Intelligent New Energy Vehicle are also acknowledged.

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Authors and Affiliations

  1. College of Mechanical and Optoelectronics Physics, Huaihua University, Huaihua, 418008, China

    Chengfu Shu

  2. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, 410082, China

    Chengfu Shu & Shujuan Hou

  3. College of Mechanical and Vehicle Engineering, Hunan University, Changsha, 410082, China

    Shujuan Hou

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  1. Chengfu Shu
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  2. Shujuan Hou
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Correspondence to Shujuan Hou.

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Shu, C., Hou, S. Theoretical prediction on corrugated sandwich panels under bending loads. Acta Mech. Sin. 34, 925–935 (2018). https://doi.org/10.1007/s10409-018-0767-y

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  • DOI: https://doi.org/10.1007/s10409-018-0767-y

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