![]() Gibson, Fracture toughness of brittle honeycombs, Acta Metallurgica et Materialia, 39 (1991) 1627–1636. Phani, Effective elastic mechanical properties of single layer graphene sheets, Nanotechnology, 20 (2009) 065709 (11pp). Yuan.Atomistic simulations of J-integral in 2D graphene nanosystems, Nanoscience and Nanotechnology, 5 (12) (2005) 2099–2107.į. Yuan, Nanoscopic modeling of fracture of 2D graphene systems, Nanoscience and Nanotechnology, 10 (2005). ![]() ![]() Characterizing the fracture parameters of a graphene sheet using atomistic simulation and continuum mechanics, International Journal of Solids and Structures, 47 (2010) 503–509. Quasicontinuum models of fracture and plasticity, Engineering Fracture Mechanics, 61 (1998) 427–444. Atomistic simulation and continuum modeling ofgraphenenanoribbons under uniaxial tension, Modelling Simul. Huang, A molecular dynamics investigation of the mechanical properties of graphenenanochains, J. Shenoy, A molecular dynamics study of the mechanical properties of hydrogen functionalized grapheme, Carbon, 48 3 (2010) 898–904. A coupled quantum/continuum mechanics study of graphene fracture, Int J Fract (2012) 163–173. Two-dimensional gas of massless Dirac fermions in grapheme, Nature, 438 (7065) (2005) 197–200. The bending of single layer graphene sheets: the lattice versus continuum approach, Nanotechnology, 21 (2010) 125702 (9pp).Į. The critical stress intensity factor for a graphene sheet was found to be K IC = 2.63 ~ 3.2 MPa \(\sqrt m \) for the case of a zigzag crack.į. K- field based displacements were applied on the boundary of the micromechanical model, and FEM results were obtained and compared with theoretical findings. The fracture toughness of single-layer graphene is governed by a competition between bond breaking and bond rotation at a crack tip. A new formula was derived analytically from the deformation and bending mechanism of solid-state carbon-carbon bonds so as to describe the mode I fracture of SLGS. At each step in the simulation, the atomic model was centered on the crack tip to adaptively follow its path. As crack propagation progressed, the crack tip position and crack path were updated from broken bonds in the molecular dynamics (MD) model. Broken bonds were identified by a sharp increase in the position of the atoms. To predict the fracture toughness of a single-layer graphene sheet (SLGS), analytical formulations were devised for the hexagonal honeycomb lattice using a linkage equivalent discrete frame structure.
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