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Mapping the structure, composition and mechanical properties of bamboo

Published online by Cambridge University Press:  01 August 2006

I.M. Low ,
Z.Y. Che  and
B.A. Latella
I.M. Low*
Affiliation:
Materials Research Group, Department of Applied Physics, Curtin University of Technology, Perth WA 6845, Australia
Z.Y. Che
Affiliation:
Materials Research Group, Department of Applied Physics, Curtin University of Technology, Perth WA 6845, Australia
B.A. Latella
Affiliation:
Materials Division, Australian Nuclear Science and Technology Organisation (ANTSO), Menai, NSW 2234, Australia
*
a) Address all correspondence to this author. e-mail: j.low@curtin.edu.au
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Abstract

The structure, composition, and mechanical response of Australian bamboo were investigated. The graded structure, composition, and mechanical properties were confirmed by depth profiles obtained using synchrotron radiation diffraction and Vickers indentation. The mechanical performance of bamboo was strongly dependent on age. Results indicated that young bamboo has a higher strength, elastic stiffness, and fracture toughness than its older counterpart does. In addition, the hardness of bamboo is both load dependent and time dependent as a result of an expanding interfacial damage zone and indentation creep, respectively. In addition to fiber debonding, crack deflection and crack-bridging are the major energy dissipative processes for imparting a high toughness in bamboo.

Keywords

BiologicalCompositeHardness
Type
Articles
Information
Journal of Materials Research , Volume 21 , Issue 8 , August 2006 , pp. 1969 - 1976
Copyright
Copyright © Materials Research Society 2006

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