In the last years, 2D nanomaterials, and in particular graphene, have received considerable attention, due to the wide number of demonstrated or potential applications in electronic nanodevices, energy generation and storage, biotechnologies, composite materials. The study of their mechanical behaviour plays an important role for their manufacturing and integration in devices, for tuning their performances as well as for controlling the mechanics of their composites. For this reason, considerable research efforts have been done for modelling their mechanical behaviour through a variety of approaches, ranging from the solid state physics methods to the use of equivalent continua. The most of the existing literature has focused only the in-plane behaviour of these materials, while there is a lack of studies of their transverse behaviour, relevant for buckling, wrinkling and rippling phenomena or simply to establish the bending stiffness of the continua. With this in mind, in this paper, the Gillis sticks-and-springs model for the in-plane behaviour of graphene is extended to account also for transverse deformation. To this aim, the contribution of dihedral angles is included. Numerical analyses regarding the out-of plane buckling of graphene sheets are addressed.
Genoese, A., Genoese, A., Rizzi, N.L., & Salerno, G. (2018). A nonlinear model for the out-of-plane behaviour of single-layer graphene sheets. In ESMC 2018.
|Titolo:||A nonlinear model for the out-of-plane behaviour of single-layer graphene sheets|
|Data di pubblicazione:||2018|
|Citazione:||Genoese, A., Genoese, A., Rizzi, N.L., & Salerno, G. (2018). A nonlinear model for the out-of-plane behaviour of single-layer graphene sheets. In ESMC 2018.|
|Appare nelle tipologie:||4.2 Abstract in Atti di convegno|