| Dynamical Performance of Graphene Aerogel with Ductile and Brittle Characteristics | |
Xiao KL(肖凯璐)1,2 ; Zhang, Wei1; Zhu, Mingquan3; Yin QY(殷秋运)1; Fortunelli, Alessandro4,5; Goddard III, William A4; Wu XQ(吴先前)1
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| Corresponding Author | Xiao, Kailu([email protected]) ; Wu, Xianqian([email protected]) |
| Source Publication | ADVANCED FUNCTIONAL MATERIALS
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| 2024-03-29 | |
| Pages | 11 |
| ISSN | 1616-301X |
| Abstract | Current research regarding the efficiency of ultra-light graphene aerogel (GA) energy dissipation is limited to quasi-static tests and simulations. The lack of direct dynamical experiments has impeded its utilization in fields of energy dissipation. Therefore, in this study, the high dynamic energy dissipation capability of GA with ultra-low density is obtained directly from the experiment. It is found that the porous and anisotropic properties of GA render the projectile deflected hierarchically and further induce gradually cascaded failure with asymmetry expansion in the GA. This feature, taking advantage of ductile materials, facilitates energy dissipation capability. Failure morphologies of rippled graphene flakes involve brittle features such as micron-size cracks and local broken flakes. In addition, these coarse-grained molecular dynamics (CGMD) simulation results imply kinetic energy changes due to movement, and fluctuations of graphene flakes are effective ways to dissipate energy. Moreover, the stiffness increase of graphene flakes plays a weakened role in energy dissipation because reduced contact area impedes the effectiveness of stress wave and thermal transfer while also increasing the brittle characteristics of GA. Combining the failure characteristics of brittle materials with the benefits of ductile network materials, GA shows great promise in impact protection applications. The ultra-low-density with high energy dissipation capability of graphene aerogel (GA) is studied in this work. The hierarchical deflection of the projectile causes the gradually cascaded failure characteristic of the GA with an asymmetric expansion. Besides, failure morphologies of graphene flakes involve brittle failure characteristics like micron cracks and local broken flakes. image |
| Keyword | asymmetry expanded failure mode dynamical performance energy dissipation behavior graphene aerogel |
| DOI | 10.1002/adfm.202401473 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:001193253600001 |
| WOS Keyword | OSTEOGENIC DIFFERENTIATION ; MULTILAYER GRAPHENE ; MECHANICAL-BEHAVIOR ; FOAM ; DEFORMATION |
| WOS Research Area | Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter |
| Funding Project | National Natural Science Foundation of China ; [12272391] ; [12232020] |
| Funding Organization | National Natural Science Foundation of China |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Xiao, Kailu ; Wu, Xianqian |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/94909 |
| Collection | 流固耦合系统力学重点实验室 |
| Affiliation | 1.Chinese Acad Sci, Inst Mech, Beijing 100190, Peoples R China; 2.Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX 77840 USA; 3.Univ Chinese Acad Sci, CAS Key Lab Nanosyst & Hierarch Fabricat, CAS Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, Beijing 100190, Peoples R China; 4.CALTECH, Mat & Proc Simulat Ctr MSC, Pasadena, CA 91125 USA; 5.ThC2 Lab, CNR ICCOM, CNR, Via G Moruzzi 1, I-56124 Pisa, Italy |
| Recommended Citation GB/T 7714 | Xiao KL,Zhang, Wei,Zhu, Mingquan,et al. Dynamical Performance of Graphene Aerogel with Ductile and Brittle Characteristics[J]. ADVANCED FUNCTIONAL MATERIALS,2024:11.Rp_Au:Xiao, Kailu, Wu, Xianqian |
| APA | 肖凯璐.,Zhang, Wei.,Zhu, Mingquan.,殷秋运.,Fortunelli, Alessandro.,...&吴先前.(2024).Dynamical Performance of Graphene Aerogel with Ductile and Brittle Characteristics.ADVANCED FUNCTIONAL MATERIALS,11. |
| MLA | 肖凯璐,et al."Dynamical Performance of Graphene Aerogel with Ductile and Brittle Characteristics".ADVANCED FUNCTIONAL MATERIALS (2024):11. |
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