Study of Viscoelastic Properties of Graphene Foams Using Dynamic Mechanical Analysis and Coarse Grained Molecular Dynamics Simulations

doi:10.3390/ma16062457

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	Study of Viscoelastic Properties of Graphene Foams Using Dynamic Mechanical Analysis and Coarse Grained Molecular Dynamics Simulations
	Liu, Shenggui ; Lyu, Mindong ; Yang, Cheng 1,2; Jiang MQ(蒋敏强); Wang C(王超)
发表期刊	MATERIALS
	2023-03
卷号	16 期号:6 页码:2457
摘要	As a promising nano porous material for energy dissipation, the viscoelastic properties of three dimensional (3D) graphene foams (GrFs) are investigated by combining a dynamic mechanical analysis (DMA) and coarse grained molecular dynamic (CGMD) simulations. The effects of the different factors, such as the density of the GrFs, temperature, loading frequency, oscillatory amplitude, the pre strain on the storage and loss modulus of the GrFs as well as the micro mechanical mechanisms are mainly focused upon. Not only the storage modulus but also the loss modulus are found to be independent of the temperature and the frequency. The storage modulus can be weakened slightly by bond breaking with an increasing loading amplitude. Furthermore, the tensile/compressive pre strain and density of the GrFs can be used to effectively tune the viscoelastic properties of the GrFs. These results should be helpful not only for understanding the mechanical mechanism of GrFs but also for optimal designs of advanced damping materials.
关键词	graphene foam materials viscoelastic properties dynamic mechanical analysis microstructure coarse grained molecular dynamics simulation
DOI	10.3390/ma16062457
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000958802900001
WOS研究方向	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS类目	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
论文分区	二类/Q1
力学所作者排名	1
RpAuthor	Wang, C (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China. ; Wang, C (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/91795
专题	非线性力学国家重点实验室
作者单位	1.China Univ Min & Technol, Sch Mech & Civil Engn, Beijing 100083, Peoples R China 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China 3.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Liu, Shenggui,Lyu, Mindong,Yang, Cheng,et al. Study of Viscoelastic Properties of Graphene Foams Using Dynamic Mechanical Analysis and Coarse Grained Molecular Dynamics Simulations[J]. MATERIALS,2023,16,6,:2457.
APA	Liu, Shenggui,Lyu, Mindong,Yang, Cheng,蒋敏强,&王超.(2023).Study of Viscoelastic Properties of Graphene Foams Using Dynamic Mechanical Analysis and Coarse Grained Molecular Dynamics Simulations.MATERIALS,16(6),2457.
MLA	Liu, Shenggui,et al."Study of Viscoelastic Properties of Graphene Foams Using Dynamic Mechanical Analysis and Coarse Grained Molecular Dynamics Simulations".MATERIALS 16.6(2023):2457.

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