Stability characteristics of single-layered silicon carbide nanosheets under uniaxial compression

Vibrational analysis of single-layered silicon carbide nanosheets and single-walled silicon carbide nanotubes using nanoscale finite element method

“…Substituting the values of force constants as kr=417.156nN/nm, kθ=0.842nN.nm and kτ=1.505nN,nm 10,11 into equation (9), the elastic properties are obtained as d=1.7971Ang, E=2.9372×10-8N/Ang2 and G=2.6256×10-8N/Ang2. 10,11 The masses 4.6514×10-23g and 1.9945×10-23g, respectively, are placed at the corners of hexag...…”

“…Besides, as the atomic methods such as density functional theory (DFT) and molecular dynamics (MD) simulations are time-consuming, the continuum mechanics approaches like FE method are of great importance. [10][11][12][14][15][16][17][18][19] The accuracy of the applied FE method has been proved previously. 16 A three-dimensional finite element model is used to investigate the vibrational behavior of SiC nanostructures in which Si-C bonds are simulated by beam elements.…”

“…They also used their model to study their model to investigate the stability characteristics of single-layered silicon carbide nanosheets (SLSiSNSs). 11…”

“…5 The continuum models also can be divided as Bernoulli-Euler/ Timoshenko beam models, 6,7 shell models 8,9 and space frame models. [10][11][12] Moon et al 13 used the MD simulations to obtain Young's modulus of SiCNTs. Employing the same approach, Setoodeh et al 2 studied the buckling behavior of SiCNTs.…”

“…They also used their model to study their model to investigate the stability characteristics of single-layered silicon carbide nanosheets (SLSiSNSs). 11 A 3D finite element model is used here which can be used to study the mechanical behavior of SLSiSNSs and SWSiCNTs. The proposed model would be used to study the vibrational behavior of SLSiSNSs and SWSiCNTs.…”