Self-adaptive formation of uneven node spacings in wild bamboo


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PhysRevE.93.022406.pdf

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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/60843

Title:	Self-adaptive formation of uneven node spacings in wild bamboo
Authors:	Shima, Hiroyuki Browse this author →KAKEN DB
	Sato, Motohiro Browse this author →KAKEN DB
	Inoue, Akio Browse this author
Issue Date:	10-Feb-2016
Publisher:	American Physical Society (APS)
Journal Title:	Physical review E
Volume:	93
Issue:	2
Start Page:	022406-1
End Page:	022406-9
Publisher DOI:	10.1103/PhysRevE.93.022406
PMID:	26986361
Abstract:	Bamboo has a distinctive structure wherein a long cavity inside a cylindrical woody section is divided into many chambers by stiff diaphragms. The diaphragms are inserted at nodes and thought to serve as ring stiffeners for bamboo culms against the external load; if this is the case, the separation between adjacent nodes should be configured optimally in order to enhance the mechanical stability of the culms. Here, we reveal the hitherto unknown blueprint of the optimal node spacings used in the growth of wild bamboo. Measurement data analysis together with theoretical formulations suggest that wild bamboos effectively control their node spacings as well as other geometric parameters in accord with the lightweight and high-strength design concept.
Rights:	©2016 American Physical Society
Type:	article
URI:	http://hdl.handle.net/2115/60843
Appears in Collections:	工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 佐藤太裕

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