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Nanomaterials 2019, 9(1), 109;

Atomistic Study of Mechanical Behaviors of Carbon Honeycombs

The Institute of Technological Sciences, Wuhan University, Wuhan 430072, China
Nuclear Engineering and Radiological Sciences, University of Michigan, Ann Arbor, MI 48109, USA
School of Power and Mechanical Engineering, Wuhan University, Wuhan 430072, China
Authors to whom correspondence should be addressed.
Received: 11 December 2018 / Revised: 3 January 2019 / Accepted: 14 January 2019 / Published: 18 January 2019
(This article belongs to the Special Issue Electronic and Thermal Properties of Graphene)
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With an ultralarge surface-to-volume ratio, a recently synthesized three-dimensional graphene structure, namely, carbon honeycomb, promises important engineering applications. Herein, we have investigated, via molecular dynamics simulations, its mechanical properties, which are inevitable for its integrity and desirable for any feasible implementations. The uniaxial tension and nanoindentation behaviors are numerically examined. Stress–strain curves manifest a transformation of covalent bonds of hinge atoms when they are stretched in the channel direction. The load–displacement curve in nanoindentation simulation implies the hardness and Young’s modulus to be 50.9 GPa and 461±9 GPa, respectively. Our results might be useful for material and device design for carbon honeycomb-based systems. View Full-Text
Keywords: carbon honeycomb; molecular dynamics; LAMMPS; uniaxial tension; nanoindentation carbon honeycomb; molecular dynamics; LAMMPS; uniaxial tension; nanoindentation

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Wang, H.; Cao, Q.; Peng, Q.; Liu, S. Atomistic Study of Mechanical Behaviors of Carbon Honeycombs. Nanomaterials 2019, 9, 109.

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