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Numerical Investigation into Effective Elastic Constants of MHS/EP Composite

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Abstract

The metallic hollow sphere (MHS) periodically filled in epoxy is a type of syntactic metallic hollow sphere structure (MHS/EP). In this article, the effective elastic constants of MHS/EP composite with three kinds of packing types of MHS are numerically investigated by ANSYS. The unit cell is used to simplify MHS periodically filled composite, and the effective elastic moduli and Poisson’s ratios are analyzed. It is found that the composite for simple cubic packing type can be considered as orthogonal isotropic material. However, the composites for the other two kinds of packing types should be considered as orthotropic materials in most instances, but they can be considered as orthogonal isotropic materials in relation to their linear-elastic behavior when the shell is medium-thickness wall.

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Acknowledgments

This study is funded by the Hebei Natural Science Foundation (E2011203230) and the Hebei Institution of Higher Education scientific research plan (2010166).

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Authors and Affiliations

  1. Key Laboratory of Mechanical Reliability for Heavy Equipments and Large Structures of Hebei Province, Yanshan University, Qinhuangdao, 066004, China

    Wei Yu, Xi Liang & Huijian Li

  2. China Academy of Aerospace Aerodynamics, Beijing, 100074, China

    Meijuan Xin

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  1. Wei Yu
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  2. Meijuan Xin
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  3. Xi Liang
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  4. Huijian Li
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Correspondence to Huijian Li.

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Yu, W., Xin, M., Liang, X. et al. Numerical Investigation into Effective Elastic Constants of MHS/EP Composite. J. of Materi Eng and Perform 21, 2038–2043 (2012). https://doi.org/10.1007/s11665-012-0137-z

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  • DOI: https://doi.org/10.1007/s11665-012-0137-z

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