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Numerical study on sequential period-doubling bifurcations of graphene wrinkles on a soft substrate
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jung, Jong Hyun | - |
dc.contributor.author | Bae, Jaehyun | - |
dc.contributor.author | Moon, Myoung-Woon | - |
dc.contributor.author | Kim, Kyung-Suk | - |
dc.contributor.author | Ihm, Jisoon | - |
dc.date.accessioned | 2016-10-27T08:31:08Z | - |
dc.date.available | 2016-10-27T08:31:08Z | - |
dc.date.issued | 2015-11 | - |
dc.identifier.citation | Solid State Communications, 222, 14-17. | ko_KR |
dc.identifier.issn | 0038-1098 | - |
dc.identifier.uri | https://hdl.handle.net/10371/98628 | - |
dc.description.abstract | A compressed stiff film on a soft substrate may exhibit wrinkles and, under increased compressive strain, post-buckling instabilities as well. We numerically analyze wrinkling behaviors of graphene attached on a polydimethylsiloxane (PDMS) substrate under lateral compression. The finite element method is used to simulate the equilibrium shape of the wrinkles as a function of compressive strain. Two-dimensional stretching and bending properties of graphene are obtained by density functional theory analysis, which are then converted to equivalent elastic properties of a continuum film with finite effective thickness. The PDMS is described using an Ogden or a neo-Hookean material model. Wrinkles first appear at extremely small strain. As the lateral compression increases, due to the nonlinear elasticity of the PDMS, sequential period-doubling bifurcations of the wrinkle mode are activated until the bifurcation stops and the film folds. We show that the bifurcations are consequences of a delicate balance between the deformations of the film and the substrate to minimize the total energy. | ko_KR |
dc.description.sponsorship | J.H.J., J.B., and J.I. were supported by the National Research Foundation of Korea through the MSIP Grant no. 2006-0093853 and the Korea Institute of Science and Technology. M.-W.M. was supported by the Korea Institute of Science and Technology (KIST), and K.-S.K. by the Institute for Molecular and Nanoscale Innovation (IMNI) at Brown University (GR260000.1001) and KIST (529243). Computations were performed through the support from the Korea Institute of Science and Technology Information. | ko_KR |
dc.language.iso | en | ko_KR |
dc.publisher | Elsevier | ko_KR |
dc.subject | Graphene | ko_KR |
dc.subject | Wrinkle | ko_KR |
dc.subject | Bifurcation | ko_KR |
dc.subject | Period-doubling | ko_KR |
dc.title | Numerical study on sequential period-doubling bifurcations of graphene wrinkles on a soft substrate | ko_KR |
dc.type | Article | ko_KR |
dc.contributor.AlternativeAuthor | 정종현 | - |
dc.contributor.AlternativeAuthor | 배재현 | - |
dc.contributor.AlternativeAuthor | 문명운 | - |
dc.contributor.AlternativeAuthor | 김경석 | - |
dc.contributor.AlternativeAuthor | 임지순 | - |
dc.identifier.doi | 10.1016/j.ssc.2015.08.020 | - |
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