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Mechanical Properties of Open-Cell Cellular Structures With Rhombic Dodecahedron Cells

[+] Author Affiliations
Sahab Babaee, Babak Haghpanah Jahromi, Amin Ajdari, Hamid Nayeb-Hashemi, Ashkan Vaziri

Northeastern University, Boston, MA

Paper No. IMECE2010-39924, pp. 575-579; 5 pages
doi:10.1115/IMECE2010-39924
From:
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 9: Mechanics of Solids, Structures and Fluids
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4446-5
  • Copyright © 2010 by ASME

abstract

We present a series of analytical models and finite element results (FE) for special 3-D open cellular foam to determine the effective material properties of a 3D rhombic dedecahedron open-cell cellular structure. The analytical approach is based on minimizing the total energy associated with small deformation of a single unit cell of the cellular structure. The finite element models were developed for both a single unit cell and three dimensional foam structure and used to obtain the mechanical properties in all three principal directions.

Copyright © 2010 by ASME

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