The mechanical property and micro-mechanism of nanoparticle-contained graphene foam materials under uniaxial tension

doi:10.1016/j.commatsci.2022.111277

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

	The mechanical property and micro-mechanism of nanoparticle-contained graphene foam materials under uniaxial tension
	Khan, Muhammad Bilal 3,5; Wang, Chao 2,4; Wang, Shuai 1; Chen, Shaohua 3,5
刊名	COMPUTATIONAL MATERIALS SCIENCE
	2022-04-15
卷号	206 页码:8
关键词	Nanoparticles Graphene foam Uniaixal tension Mechanical property Micro-mechanism Coarse-grained molecular dynamics
ISSN号	0927-0256
DOI	10.1016/j.commatsci.2022.111277
通讯作者	Wang, Chao(wangchao@lnm.imech.ac.cn) ; Chen, Shaohua(shchen@bit.edu.cn)
英文摘要	Nanoparticle-contained graphene foams (NP-GrFs) have been widely concerned and used in many practical applications in recent years. However, the mechanical property and its micro-mechanism of such a new com-posite material are still poorly understood. In this work, a coarse-grained NP-GrFs model is established to sys-tematically study the mechanical response of NP-GrFs under uniaxial tension as well as the size and volume fraction effects of nanoparticles. It is found that both the initial modulus and tensile strength depend on the size and volume fraction of NPs, both of which can increase by almost an order of magnitude. Furthermore, when the volume fraction of nanoparticles increases, the strain hardening phenomenon occurs. Two main enhancing mechanisms are found. One is the increased adhesion between neighbor sheets by NPs and the other is the homogenized stress due to the extrusion of NPs. The present results should be useful not only for understanding the microstructure-determined mechanical properties of NP-GrFs but also for the design of advanced functional materials or devices based on GrFs.
资助项目	NSFC[11872114] ; NSFC[12032004] ; NSFC[11972348] ; NSFC[12002034] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDB22040503] ; CAS/SAFEA International Partnership Program for Creative Research Teams
WOS关键词	DEFORMATION MECHANISM ; IN-SITU ; AEROGELS ; PERFORMANCE ; COMPOSITE ; NANOCRYSTALS ; FABRICATION ; BEHAVIOR ; SIZE
WOS研究方向	Materials Science
语种	英语
WOS记录号	WOS:000790789000003
资助机构	NSFC ; Strategic Priority Research Program of the Chinese Academy of Sciences ; CAS/SAFEA International Partnership Program for Creative Research Teams
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/89378]
专题	力学研究所_非线性力学国家重点实验室
通讯作者	Wang, Chao; Chen, Shaohua
作者单位	1.Beijing Univ Chem Technol, Coll Mech & Elect Engn, Beijing 100029, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Beijing Inst Technol, Beijing Key Lab Lightweight Multifunct Composite, Beijing 100081, Peoples R China 4.Chinese Acad Sci, Inst Mech, LNM, Beijing 100190, Peoples R China 5.Beijing Inst Technol, Inst Adv Struct Technol, Beijing 100081, Peoples R China
推荐引用方式 GB/T 7714	Khan, Muhammad Bilal,Wang, Chao,Wang, Shuai,et al. The mechanical property and micro-mechanism of nanoparticle-contained graphene foam materials under uniaxial tension[J]. COMPUTATIONAL MATERIALS SCIENCE,2022,206:8.
APA	Khan, Muhammad Bilal,Wang, Chao,Wang, Shuai,&Chen, Shaohua.(2022).The mechanical property and micro-mechanism of nanoparticle-contained graphene foam materials under uniaxial tension.COMPUTATIONAL MATERIALS SCIENCE,206,8.
MLA	Khan, Muhammad Bilal,et al."The mechanical property and micro-mechanism of nanoparticle-contained graphene foam materials under uniaxial tension".COMPUTATIONAL MATERIALS SCIENCE 206(2022):8.