Numerical and experimental studies on compressive behavior of Gyroid lattice cylindrical shells

Yongzhen Wang; Xianben Ren; Zihao Chen; Yongbo Jiang; Xiaofei Cao; Shizheng Fang; Tian Zhao; Ying Li; Daining Fang

Materials & Design (Jan 2020)

Numerical and experimental studies on compressive behavior of Gyroid lattice cylindrical shells

Yongzhen Wang,
Xianben Ren,
Zihao Chen,
Yongbo Jiang,
Xiaofei Cao,
Shizheng Fang,
Tian Zhao,
Ying Li,
Daining Fang

Affiliations

Yongzhen Wang: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China; School of Aerospace Engineering, Tsinghua University, Beijing, China
Xianben Ren: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China
Zihao Chen: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Yongbo Jiang: State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China
Xiaofei Cao: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China
Shizheng Fang: School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing, China
Tian Zhao: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China; State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China; Corresponding authors at: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China.
Ying Li: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China; State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China; Corresponding authors at: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China.
Daining Fang: Beijing Key Laboratory of Lightweight Multi-functional Composite Materials and Structures, Institute of Advanced Structure Technology, Beijing Institute of Technology, Beijing 100081, China; State Key Laboratory of Explosion Science and Technology, Beijing Institute of Technology, Beijing 100081, China

Journal volume & issue: Vol. 186

Abstract

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In this paper, Gyroid lattice cylindrical shell (LCS) specimens were designed by a newly proposed mapping methodology and were fabricated by selective laser melting (SLM) technology. Their energy absorption and deformation modes were investigated through quasi-static compression tests. A finite element model (FEM) was proposed, which was validated by the experimental results, for a further study on the compressive behavior of the Gyroid LCS. Based on the numerical study, it was found that Gyroid LCS showed superior energy absorption to the hexagonal LCS and triangular LCS with the same density. In addition, a parametric study indicated that main energy absorption factors, namely total energy absorption, specific energy absorption and mean crushing load, were in power function relationship with the relative density. Finally, it was found that thickness gradient and geometric gradient had significant effects on the failure modes of Gyroid LCS under compression. The research in this paper is expected to provide some guidance for the design of energy absorption devices or structures. Keywords: Gyroid lattice cylindrical structure, Energy absorption, Triply periodic minimal surfaces, Quasi-static compression

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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