Bamboo-inspired optimal design for functionally graded hollow cylinders

The optimal distribution of the reinforcing fibers for stiffening hollow cylindrical composites is explored using the linear elasticity theory. The spatial distribution of the vascular bundles in wild bamboo, a nature-designed functionally graded material, is the basis for the design. Our results su...

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Bibliographic Details
Published inPloS one Vol. 12; no. 5; p. e0175029
Main Authors Sato, Motohiro, Inoue, Akio, Shima, Hiroyuki
Format Journal Article
LanguageEnglish
Published United States Public Library of Science 03.05.2017
Public Library of Science (PLoS)
Subjects
Bamboo
Bambusa
Biology and Life Sciences
Composite building materials
Composite materials
Crack propagation
Cylinders
Design
Design and construction
Design optimization
Elasticity
Equipment Design
Functionally gradient materials
Mechanical properties
Medical equipment
Models, Theoretical
Optimization
Physical Sciences
Reinforcing fibers
Research and Analysis Methods
Rigidity
Spatial distribution
Stiffening
Stiffness
Tension tests
Japan
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Summary:The optimal distribution of the reinforcing fibers for stiffening hollow cylindrical composites is explored using the linear elasticity theory. The spatial distribution of the vascular bundles in wild bamboo, a nature-designed functionally graded material, is the basis for the design. Our results suggest that wild bamboos maximize their flexural rigidity by optimally regulating the radial gradation of their vascular bundle distribution. This fact provides us with a plant-mimetic design principle that enables the realization of high-stiffness and lightweight cylindrical composites.
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Conceptualization: MS AI HS. Data curation: HS. Formal analysis: MS HS. Funding acquisition: MS AI HS. Investigation: MS AI HS. Methodology: MS HS. Project administration: MS HS. Software: HS. Supervision: HS. Visualization: MS AI HS. Writing – original draft: HS. Writing – review & editing: MS AI HS.
Competing Interests: The authors have declared that no competing interests exist.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0175029