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Temperature-dependent elastic properties of single layer graphene sheets
AbstractElastic properties of single layer graphene sheets (SLGSs) with different values of aspect ratio are presented by using molecular dynamics simulation. SLGSs subjected to uniaxial tension, shear load and transverse uniform pressure are simulated under temperature varying from 300K to 700K. Based on the classical plate theory, an individual orthotropic plate model is adopted for SLGSs. By direct measuring the bending deflections, the effective thickness of SLGSs is determined uniquely. It is found that SLGSs exhibit anisotropic, size-dependent and temperature-dependent properties. The results reveal that Young’s modulus decreases with increasing in temperature, whereas the shear modulus depends weakly on temperature change. The results also show that the effective thickness of zigzag sheets is larger than that of armchair sheets.
Temperature-dependent elastic properties of single layer graphene sheets
AbstractElastic properties of single layer graphene sheets (SLGSs) with different values of aspect ratio are presented by using molecular dynamics simulation. SLGSs subjected to uniaxial tension, shear load and transverse uniform pressure are simulated under temperature varying from 300K to 700K. Based on the classical plate theory, an individual orthotropic plate model is adopted for SLGSs. By direct measuring the bending deflections, the effective thickness of SLGSs is determined uniquely. It is found that SLGSs exhibit anisotropic, size-dependent and temperature-dependent properties. The results reveal that Young’s modulus decreases with increasing in temperature, whereas the shear modulus depends weakly on temperature change. The results also show that the effective thickness of zigzag sheets is larger than that of armchair sheets.
Temperature-dependent elastic properties of single layer graphene sheets
Shen, Le (author) / Shen, Hui-Shen (author) / Zhang, Chen-Li (author)
2010-04-08
5 pages
Article (Journal)
Electronic Resource
English
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