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Acta Mechanica Sinica

, Volume 35, Issue 1, pp 88–98 | Cite as

Mechanical properties of 65Mn chiral structure with three ligaments

  • X. W. SuEmail author
  • D. M. Zhu
  • C. Zheng
  • M. M. Tomovic
Research Paper
  • 21 Downloads

Abstract

Chiral honeycomb structures have been developed in recent years, showing excellent mechanical properties, including in-plane deformation and out-of-plane bearing and vibration isolation. In this study, the 65Mn chiral structure with three ligaments was modeled and analyzed using the finite element (FE) method. The effects of the dimensionless ligament length and dimensionless ligament thickness on the in-plane equivalent elastic modulus, equivalent Poisson’s ratio, and out-of-plane shear modulus were studied. The numerical results indicate that increase of the dimensionless ligament length leads to decrease of the equivalent elastic modulus and increase of the equivalent Poisson’s ratio, whereas the out-of-plane equivalent shear modulus decreases. The results also indicate that increase of the dimensionless ligament thickness leads to increase of the equivalent elastic modulus, whereas the equivalent Poisson’s ratio remains nearly unchanged and the out-of-plane equivalent shear modulus shows a linear increase. The numerical results are verified by comparison with published experimental data. These results will provide a reference for the application of chiral structures with three ligaments in the aerospace field.

Keywords

Chiral structure with three ligaments Mechanical properties Finite element method 

Notes

Acknowledgements

The authors would like to express their appreciation to the Beijing Excellent Talents Training Program (Grant 2014000020124G072) and China Scholarship Council.

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Copyright information

© The Chinese Society of Theoretical and Applied Mechanics; Institute of Mechanics, Chinese Academy of Sciences and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • X. W. Su
    • 1
    Email author
  • D. M. Zhu
    • 2
  • C. Zheng
    • 2
  • M. M. Tomovic
    • 3
  1. 1.School of TechnologyBeijing Forestry UniversityBeijingChina
  2. 2.School of Mechanical EngineeringUniversity of Science and Technology BeijingBeijingChina
  3. 3.Batten College of Engineering and TechnologyOld Dominion UniversityNorfolkUSA

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