Mechanically robust bamboo node and its hierarchically fibrous structural design

Chen，Si Ming1; Zhang，Si Chao1; Gao，Huai Ling1; Wang，Quan2; Zhou，Li Chuan2; Zhao，Hao Yu1; Li，Xin Yu1; Gong，Ming2; Pan，Xiao Feng1; Cui，Chen1; Wang，Ze Yu1; Zhang，Yong Liang2; Wu，Heng An2; Yu，Shu Hong1,3

2023-02-01

10.1093/nsr/nwac195

National Science Review   影响因子和分区

2095-5138

2053-714X

Although short bamboo nodes function in mechanical support and fluid exchange for bamboo survival, their structures are not fully understood compared to unidirectional fibrous internodes. Here, we identify the spatial heterostructure of the bamboo node via multiscale imaging strategies and investigate its mechanical properties by multimodal mechanical tests. We find three kinds of hierarchical fiber reinforcement schemes that originate from the bamboo node, including spatially tightened interlocking, triaxial interconnected scaffolding and isotropic intertwining. These reinforcement schemes, built on porous vascular bundles, microfibers and more-refined twist-aligned nanofibers, govern the structural stability of the bamboo via hierarchical toughening. In addition, the spatial liquid transport associated with these multiscale fibers within the bamboo node is experimentally verified, which gives perceptible evidence for life-indispensable multidirectional fluid exchange. The functional integration of mechanical reinforcement and liquid transport reflects the fact that the bamboo node has opted for elaborate structural optimization rather than ingredient richness. This study will advance our understanding of biological materials and provide insight into the design of fiber-reinforced structures and biomass utilization.

bamboo node biological materials functional integration hierarchical fiber structural reinforcement

SCI ; EI

英语

其他

National Natural Science Foundation of China["2021YFA0715700","2018YFE0202201"] ; University Synergy Innovation Program of Anhui Province["51732011","U1932213","21975241","22005289"] ; Science and Technology Major Project of Anhui Province[GXXT-2019-028] ; Fundamental Research Funds for the Central Universities[201903a05020003] ; China Postdoctoral Science Foundation[WK2340000112] ; null[2019TQ0294] ; null[2020M671870]

Science & Technology - Other Topics

Multidisciplinary Sciences

WOS:000910580600001

OXFORD UNIV PRESS

20232114121296

Biological materials ; Fibers ; Integration ; Reinforcement ; Stability ; Structural design ; Structural optimization ; Structural properties ; Transport properties

Structural Design:408 ; Structural Design, General:408.1 ; Biological Materials and Tissue Engineering:461.2 ; Pulp and Paper:811.1 ; Agricultural Products:821.4 ; Calculus:921.2 ; Optimization Techniques:921.5 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

2-s2.0-85147350924

Scopus

1.Department of Chemistry,Institute of Biomimetic Materials & Chemistry,Anhui Engineering Laboratory of Biomimetic Materials,Division of Nanomaterials & Chemistry,Hefei National Research Center for Physical Sciences at the Microscale,Institute of Energy,Hefei Comprehensive National Science Center,University of Science and Technology of China,Hefei,230026,China
2.Cas Key Laboratory of Mechanical Behavior and Design of Materials,Department of Modern Mechanics,Engineering and Materials Science Experiment Center,University of Science and Technology of China,Hefei,230027,China
3.Institute of Innovative Materials (I2M),Department of Materials Science and Engineering,Department of Chemistry,Southern University of Science and Technology,Shenzhen,518055,China

Chen，Si Ming,Zhang，Si Chao,Gao，Huai Ling,et al. Mechanically robust bamboo node and its hierarchically fibrous structural design[J]. National Science Review,2023,10(2).

Chen，Si Ming.,Zhang，Si Chao.,Gao，Huai Ling.,Wang，Quan.,Zhou，Li Chuan.,...&Yu，Shu Hong.(2023).Mechanically robust bamboo node and its hierarchically fibrous structural design.National Science Review,10(2).

Chen，Si Ming,et al."Mechanically robust bamboo node and its hierarchically fibrous structural design".National Science Review 10.2(2023).