Effect of interlayer forces for multilayered graphene sheets with different gap thicknesses in using nanoscale molecular mechanics approach

Title
Effect of interlayer forces for multilayered graphene sheets with different gap thicknesses in using nanoscale molecular mechanics approach
Authors
한석영
Keywords
Molecular mechanics; Elastic properties; Coupled finite element; Multilayered graphene sheets; van der Waals interaction
Issue Date
2015-05
Publisher
KOREAN SOC MECHANICAL ENGINEERS
Citation
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, v. 29, NO 5, Page. 2111-2120
Abstract
Graphene sheets are excellent materials to be adopted for powerful applications because of their superior mechanical and electrical properties. This study proposes a multilayered graphene sheet (MLGS) through finite element model (FEM) based on the use of hybrid of beam and spring elements and evaluate its mechanical properties with different gap thicknesses. A three-dimensional coupled FEM for an MLGS is developed through molecular mechanics. The interaction forces of the graphene layer with different gap thicknesses are also considered. The out-of-plane deformation of the bonds is distinguished from the in-plane deformation by considering a circular cross section for the beam elements. The effects of the interlayer forces on Young's modulus and shear modulus of MLGS are investigated. Simulation results from this work are comparable to both experimental tests and numerical studies from literature.
URI
http://link.springer.com/article/10.1007%2Fs12206-015-0433-2http://hdl.handle.net/20.500.11754/24952
ISSN
1738-494X; 1976-3824
DOI
http://dx.doi.org/10.1007/s12206-015-0433-2
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > MECHANICAL ENGINEERING(기계공학부) > Articles
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