An innovative bistable energy-absorbing cylindrical shell structure composed of multiple unit cells is presented in this paper. The structural parameters of the single-layer cylindrical shell structure that produces bistable characteristics are expounded both analytically and numerically. The influence of the number of circumferential cells and the size parameters of the cell ligament on the structure’s macroscopic mechanical response was analyzed. A series of cylindrical shell structures with various size parameters were fabricated using a stereolithography apparatus (SLA). Uniaxial loading and unloading experiments were conducted to achieve force–displacement relationships. Deformation of the structural multistable phase transition response was discussed based on experimental and finite element simulation results. The results show that the proposed innovative single-layer cylindrical shell structure will stabilize at two different positions under certain parameters. The multilayer cylindrical shell exhibits different force–displacement response curves under loading and unloading, and these curves enclose a closed area. In addition, this structure can be cyclically loaded and unloaded, thanks to its good stability and reproducibility, making it attractive in applications requiring repetitive energy absorption.
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July 2019
Research-Article
Multistable Cylindrical Mechanical Metastructures: Theoretical and Experimental Studies
Jian Hua,
Jian Hua
State Key Laboratory of Mechanics and Control of Mechanical Structures,
Nanjing 210016,
e-mail: jianhua714@126.com
Nanjing University of Aeronautics and Astronautics
,Nanjing 210016,
China
e-mail: jianhua714@126.com
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Hongshuai Lei,
Hongshuai Lei
1
Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures,
Beijing 100081,
Beijing Institute of Technology
,Beijing 100081,
China
;State Key Laboratory of Explosion Science and Technology,
Beijing 100081,
e-mail: leihongshuai@pku.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: leihongshuai@pku.edu.cn
1Corresponding authors.
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Zhong Zhang,
Zhong Zhang
Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures,
Beijing 100081,
e-mail: fyblv5@163.com
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: fyblv5@163.com
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Cunfa Gao,
Cunfa Gao
1
State Key Laboratory of Mechanics and Control of Mechanical Structures,
Nanjing 210016,
e-mail: cfgao@nuaa.edu.cn
Nanjing University of Aeronautics and Astronautics
,Nanjing 210016,
China
e-mail: cfgao@nuaa.edu.cn
1Corresponding authors.
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Daining Fang
Daining Fang
Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures,
Beijing 100081,
Beijing Institute of Technology
,Beijing 100081,
China
;State Key Laboratory of Explosion Science and Technology,
Beijing 100081,
e-mail: fangdn@pku.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: fangdn@pku.edu.cn
Search for other works by this author on:
Jian Hua
State Key Laboratory of Mechanics and Control of Mechanical Structures,
Nanjing 210016,
e-mail: jianhua714@126.com
Nanjing University of Aeronautics and Astronautics
,Nanjing 210016,
China
e-mail: jianhua714@126.com
Hongshuai Lei
Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures,
Beijing 100081,
Beijing Institute of Technology
,Beijing 100081,
China
;State Key Laboratory of Explosion Science and Technology,
Beijing 100081,
e-mail: leihongshuai@pku.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: leihongshuai@pku.edu.cn
Zhong Zhang
Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures,
Beijing 100081,
e-mail: fyblv5@163.com
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: fyblv5@163.com
Cunfa Gao
State Key Laboratory of Mechanics and Control of Mechanical Structures,
Nanjing 210016,
e-mail: cfgao@nuaa.edu.cn
Nanjing University of Aeronautics and Astronautics
,Nanjing 210016,
China
e-mail: cfgao@nuaa.edu.cn
Daining Fang
Beijing Key Laboratory of Lightweight Multi-Functional Composite Materials and Structures,
Beijing 100081,
Beijing Institute of Technology
,Beijing 100081,
China
;State Key Laboratory of Explosion Science and Technology,
Beijing 100081,
e-mail: fangdn@pku.edu.cn
Beijing Institute of Technology
,Beijing 100081,
China
e-mail: fangdn@pku.edu.cn
1Corresponding authors.
Contributed by the Applied Mechanics Division of ASME for publication in the Journal of Applied Mechanics. Manuscript received January 5, 2019; final manuscript received March 17, 2019; published online April 15, 2019. Assoc. Editor: Pedro Reis.
J. Appl. Mech. Jul 2019, 86(7): 071007 (10 pages)
Published Online: April 15, 2019
Article history
Received:
January 5, 2019
Revision Received:
March 17, 2019
Accepted:
March 18, 2019
Citation
Hua, J., Lei, H., Zhang, Z., Gao, C., and Fang, D. (April 15, 2019). "Multistable Cylindrical Mechanical Metastructures: Theoretical and Experimental Studies." ASME. J. Appl. Mech. July 2019; 86(7): 071007. https://doi.org/10.1115/1.4043283
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