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Microscopic deformation mechanism and main influencing factors of carbon nanotube coated graphene foams under uniaxial compression

文献类型：期刊论文

作者Wang, Shuai3,4; Wang C(王超)1,2; Khan, Muhammad Bilal3,4; Chen, Shaohua3,4
刊名NANOTECHNOLOGY
出版日期2021-08-20
卷号32期号:34页码:11
关键词carbon nanotube-coated graphene foam uniaxial compression numerical experiment mechanical property microscopic deformation mechanism
ISSN号0957-4484
DOI10.1088/1361-6528/ac020c
通讯作者Wang, Chao(wangchao@lnm.imech.ac.cn) ; Chen, Shaohua(chenshaohua72@hotmail.com)
英文摘要Many experiments have shown that carbon nanotube-coated (CNT-coated) graphene foam (CCGF) has specific mechanical properties, which further expand the application of graphene foam materials in many advanced fields. To reveal the microscopic deformation mechanism of CCGF under uniaxial compression and the main factors affecting their mechanical properties, numerical experiments based on the coarse-grained molecular dynamics method are systematically carried out in this paper. It is found that the relative stiffness of CNTs and graphene flakes seriously affects the microscopic deformation mechanism and strain distribution in CCGFs. The bar reinforcing mechanism will dominate the microstructural deformation in CCGFs composed of relatively soft graphene flakes, while the microstructural deformation in those composed of stiff graphene flakes will be dominated by the mechanical locking mechanism. The effects of CNT fraction, distribution of CNTs on graphene flakes, the thickness of graphene flakes, and the adhesion strength between CNTs and graphene flakes on the initial and intermediate moduli of foam materials are further studied in detail. The results of this paper should be helpful for a deep understanding of the mechanical properties of CCGF materials and the optimization design of microstructures in advanced graphene-based composites.
分类号二类
WOS关键词ELASTICITY ; STABILITY ; BEHAVIOR ; FILMS
资助项目NSFC[12002034] ; NSFC[11972348] ; NSFC[11532013] ; NSFC[11872114] ; NSFC[12032004] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503]
WOS研究方向Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000657486900001
资助机构NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences
其他责任者Wang, Chao ; Chen, Shaohua
源URL[http://dspace.imech.ac.cn/handle/311007/86907]  
专题力学研究所_非线性力学国家重点实验室
作者单位1.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China;
3.Beijing Inst Technol, Beijing Key Lab Lightweight Multifunct Composite, Beijing 100081, Peoples R China;
4.Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China;
推荐引用方式
GB/T 7714		 Wang, Shuai,Wang C,Khan, Muhammad Bilal,et al. Microscopic deformation mechanism and main influencing factors of carbon nanotube coated graphene foams under uniaxial compression[J]. NANOTECHNOLOGY,2021,32(34):11.
APA Wang, Shuai,王超,Khan, Muhammad Bilal,&Chen, Shaohua.(2021).Microscopic deformation mechanism and main influencing factors of carbon nanotube coated graphene foams under uniaxial compression.NANOTECHNOLOGY,32(34),11.
MLA Wang, Shuai,et al."Microscopic deformation mechanism and main influencing factors of carbon nanotube coated graphene foams under uniaxial compression".NANOTECHNOLOGY 32.34(2021):11.

入库方式： OAI收割

来源：力学研究所

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