Energy absorption of discretely assembled composite self-locked systems

doi:10.1016/j.compstruct.2022.115686

CORC > 力学研究所 > 中国科学院力学研究所 > 非线性力学国家重点实验室

	Energy absorption of discretely assembled composite self-locked systems
	Pan, Jinxin 2,3; Zhu, Weiyu 3; Yang, Kuijian 3; Hu, Lingling 3; Chen, Yuli 1
刊名	COMPOSITE STRUCTURES
	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
DOI	10.1016/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.
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关键词	CIRCULAR TUBE ; ABSORBERS
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
内容类型	期刊论文
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.