Nanomechanics of graphene

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英文篇名：Nanomechanics of graphene 作者：Yujie ; Wei ; Ronggui ; Yang 英文作者：Yujie Wei;Ronggui Yang;The State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences;School of Engineering Sciences, University of Chinese Academy of Sciences;Department of Mechanical Engineering,University of Colorado; 英文关键词：graphene;;strength;;wrinkling;;pentagon–heptagon rings;;carbon honeycomb 中文刊名：NASR 英文刊名：国家科学评论(英文版) 机构：The State Key Laboratory of Nonlinear Mechanics (LNM), Institute of Mechanics, Chinese Academy of Sciences;School of Engineering Sciences, University of Chinese Academy of Sciences;Department of Mechanical Engineering,University of Colorado; 出版日期：2019-03-15 出版单位：National Science Review 年：2019 期：v.6 基金：support from the National Natural Science Foundation of China(11425211);; support from the US National Science Foundation(1512776) 语种：英文; 页：NASR201902032 页数：25 CN：02 ISSN：10-1088/N 分类号：148-172

摘要

The super-high strength of single-layer graphene has attracted great interest. In practice, defects resulting from thermodynamics or introduced by fabrication, naturally or artificially, play a pivotal role in the mechanical behaviors of graphene. More importantly, high strength is just one aspect of the magnificent mechanical properties of graphene: its atomic-thin geometry not only leads to ultra-low bending rigidity,but also brings in many other unique properties of graphene in terms of mechanics in contrast to other carbon allotropes, including fullerenes and carbon nanotubes. The out-of-plane deformation is of a 'soft' nature, which gives rise to rich morphology and is crucial for morphology control. In this review article, we aim to summarize current theoretical advances in describing the mechanics of defects in graphene and the theory to capture the out-of-plane deformation. The structure–mechanical property relationship in graphene, in terms of its elasticity, strength, bending and wrinkling, with or without the influence of imperfections, is presented.
        The super-high strength of single-layer graphene has attracted great interest. In practice, defects resulting from thermodynamics or introduced by fabrication, naturally or artificially, play a pivotal role in the mechanical behaviors of graphene. More importantly, high strength is just one aspect of the magnificent mechanical properties of graphene: its atomic-thin geometry not only leads to ultra-low bending rigidity,but also brings in many other unique properties of graphene in terms of mechanics in contrast to other carbon allotropes, including fullerenes and carbon nanotubes. The out-of-plane deformation is of a 'soft' nature, which gives rise to rich morphology and is crucial for morphology control. In this review article, we aim to summarize current theoretical advances in describing the mechanics of defects in graphene and the theory to capture the out-of-plane deformation. The structure–mechanical property relationship in graphene, in terms of its elasticity, strength, bending and wrinkling, with or without the influence of imperfections, is presented.

引文

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