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Mechanical Principles of a Self-Similar Hierarchical Structure

Published online by Cambridge University Press:  31 January 2011

Huajian Gao
Huajian Gao*
Affiliation:
huajian_gao@brown.edu
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Abstract

Natural materials such as bone, shell, tendon and the attachment system of gecko exhibit multi-scale hierarchical structures. Here we summarize some recent studies on an idealized self-similar hierarchical model of bone and bone-like materials, and discuss mechanical principles of self-similar hierarchy, in particular to show how the characteristic length, aspect ratio and density at each hierarchical level can be selected to achieve flaw tolerance and superior stiffness and toughness across scale. Tel.: (401) 863-2626; Email address:

Keywords

biomimetic (assembly)fracturecomposite
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1188: Symposium LL – Architectured Multifunctional Materials , 2009 , 1188-LL01-01
Copyright
Copyright © Materials Research Society 2009

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