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Energy absorption of discretely assembled composite self-locked systems

文献类型：期刊论文

作者Pan, Jinxin2,3; Zhu, Weiyu3; Yang, Kuijian3; Hu, Lingling3; Chen, Yuli1
刊名COMPOSITE STRUCTURES
出版日期2022-07-15
卷号292页码:12
关键词Energy absorption Composite self-locked system Discretely assembled Analytical solution Functionally graded design
ISSN号0263-8223
DOI10.1016/j.compstruct.2022.115686
通讯作者Yang, Kuijian(yangkj7@mail.sysu.edu.cn)
英文摘要Impact accidents cause great damage to lives and devices due to strong destructiveness and weak predictability, and accordingly, flexibility and modifiability are essential in the design of novel impact-resistant structures. To achieve this goal, two newly-designed energy absorption systems were proposed in this paper, which could be discretely assembled without boundary constraints. Quasi-static experiments and finite element method (FEM) simulations were carried out to reveal the deformation mechanism and test the usability, based on which the analytical solutions of the crushing force of the models were established adopting plastic hinge analysis and energy method. Parametric study of multiple-tube systems was conducted to reveal the effects of foam porosity and inner tube parameters on dynamic response, and the optimal design was summarized, achieving the energy absorption efficiency of 39%. The functionally graded design of composite self-locked (CSL) systems was explored, and it was proven that the system with positive stiffness gradient was optimal.
WOS关键词CIRCULAR TUBE ; ABSORBERS
资助项目National Natural Science Foundation of China[12102490] ; National Natural Science Foundation of China[11772363] ; Science and Technology Program of Guangzhou, China[201803030037]
WOS研究方向Mechanics ; Materials Science
语种英语
WOS记录号WOS:000802216400004
资助机构National Natural Science Foundation of China ; Science and Technology Program of Guangzhou, China
源URL[http://dspace.imech.ac.cn/handle/311007/89501]  
专题力学研究所_非线性力学国家重点实验室
通讯作者Yang, Kuijian
作者单位1.Beihang Univ, Inst Solids Mech, Beijing 100191, Peoples R China
2.Chinese Acad Sci, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
3.Sun Yat sen Univ, Dept Appl Mech & Engn, Guangzhou 510275, Peoples R China
推荐引用方式
GB/T 7714		 Pan, Jinxin,Zhu, Weiyu,Yang, Kuijian,et al. Energy absorption of discretely assembled composite self-locked systems[J]. COMPOSITE STRUCTURES,2022,292:12.
APA Pan, Jinxin,Zhu, Weiyu,Yang, Kuijian,Hu, Lingling,&Chen, Yuli.(2022).Energy absorption of discretely assembled composite self-locked systems.COMPOSITE STRUCTURES,292,12.
MLA Pan, Jinxin,et al."Energy absorption of discretely assembled composite self-locked systems".COMPOSITE STRUCTURES 292(2022):12.

入库方式： OAI收割

来源：力学研究所

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