Journal
11TH INTERNATIONAL CONFERENCE ON THE MECHANICAL BEHAVIOR OF MATERIALS (ICM11)
Volume 10, Issue -, Pages 3026-3031Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.proeng.2011.04.501
Keywords
Hierarchical; Nano-honeycomb; Orthotropic Material; Elastic constants
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In this paper, we analytically calculate the in-plane linear-elastic properties of a new class of bio-inspired nano-honeycomb materials possessing a hierarchical architecture, which is often observed in natural materials. Incorporating the surface tension, peculiar of the nano-scale, modifications of the classical results for macroscopic and nonhierarchical honeycombs are proposed. A parametrical analysis reveals the influences of relative density and of two key geometrical parameters on the overall elastic properties. We discover optimal values for some of the mechanical properties, e. g. stiffness-to-density ratio. The developed theory allows us to design a new class of materials with tailored elastic properties at each hierarchical level and could be useful for many applications. (C) 2010 Published by Elsevier Ltd.
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