Thermally Induced Asymmetric Buckling of Circular Monolayer Graphene

• Main Authors: Haw-Long Lee, Win-Jin Chang
• Format: Article
• Language: English
• Published: Hindawi Limited 2013-01-01
• Series: Journal of Nanomaterials
• Online Access: http://dx.doi.org/10.1155/2013/416189

The asymmetric buckling behaviors of circular monolayer graphene with clamped boundary condition subjected to temperature change are analytically studied based on the nonlocal elasticity theory, including the small length effect. The axisymmetrical and asymmetric critical buckling temperatures and mode shape of different order modes are obtained. According to the analysis, the asymmetric critical buckling temperature of monolayer graphene is larger than the axisymmetric one. The axisymmetrical and asymmetric critical buckling temperatures decrease with increasing nonlocal parameter. In addition, nodal diametrical lines and nodal circles can be found from the modal shapes. In order to avoid destruction of the sensors due to buckling of the structure, they can be placed at the nodal diametrical lines or nodal circles.