引文信息：
Ruiyao Liu, Guofeng Yao, Zezhou Xu, Xue Guo, Jianyong Li, Zhenglei Yu, Ping Liang, Zhihui Zhang & Chunyang Han. Mechanical Characteristics Analysis of 3D-printing Novel Chiral Honeycomb Array Structures Based on Functional Principle and Constitutive Relationship. Journal of Bionic Engineering，2023，20（5），1917-1929.
Mechanical Characteristics Analysis of 3D-printing Novel Chiral Honeycomb Array Structures Based on Functional Principle and Constitutive Relationship
Ruiyao Liu, Guofeng Yao, Zezhou Xu, Xue Guo, Jianyong Li, Zhenglei Yu, Ping Liang, Zhihui Zhang & Chunyang Han
1 Department of Mechanics, School of Mechanical and Aerospace Engineering, Jilin University, Changchun, 130022, China
2 Key Laboratory of Bionic Engineering of Ministry of Education, Jilin University, Changchun, 130022, China
3 State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun, 130022, China
4 Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun, 130022, China
Abstract
Four novel chiral honeycomb structures inspired by the biological arrangement shape are designed. The functional principle is raised to solve the large deformation of bio-inspired structures and the structural constitutive model is proposed to explain the quasi-static mechanical properties of chiral honeycomb array structures and honeycomb structures. Simulation and experiment results verify the accuracy of theoretical analysis results and the errors are all within 15%. In structural mechanical properties, Equidimensional Chiral Honeycomb Array Structure (ECHS) has excellent mechanical properties. Among ECHS, Small-sized Column Chiral Honeycomb Array Structure (SCHCS) has the best properties. The bearing capacity, specific energy absorption, and specific strength of SCHCS are more than twice as much as the others in this paper. The chiral honeycomb array structure has the best mechanical properties at a certain size. In the structural design, the optimal size model should be obtained first in combination with the optimization algorithm for the protection design.
Fig. W1 Bio-inspired structures and feature. A A coconut tree with a gradient arrangement of layers and columns. a LCHCS. b SCHCS. c BHS. d GHCS. e HHCS. f SHS. Inspired by the gradient arrangement and columnar arrangement of coconut tree branches, different types of structural design are carried out. Each of the bionic structures is shown in the right magnification of the component cells. Structural dimensions are shown in Fig. 1.
Fig. W2 The material properties of the material test samples. a Nylon sample Tensile experimental result. 50 mm is the original gauge length of tensile samples, and 60 mm is the parallel length of tensile samples. b Tensile experiment platform.
Fig. W3 Comparison of structural SEA. The points circled in red are four chiral honeycomb structures in this paper.
Fig. W4 F and EA of ECHS, GHCS and HHCS at different sizes. a Dimensional variation performance of ECHS. b Dimensional variation performance of GHCS. c Dimensional variation performance of HHCS.
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Information Publisher: Ruiyao Liu, Guofeng Yao, Zezhou Xu, Xue Guo, Jianyong Li, Zhenglei Yu, Ping Liang, Zhihui Zhang & Chunyang Han
Information Release Unit: Department of Mechanics, School of Mechanical and Aerospace Engineering, Jilin University
Information Source: https://rdcu.be/dklKB
