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Elasticity theory for graphene membranes

Juan Atalaya (Institutionen för teknisk fysik, Kondenserade materiens teori) ; Andreas Isacsson (Institutionen för teknisk fysik, Kondenserade materiens teori) ; Jari M. Kinaret (Institutionen för teknisk fysik, Kondenserade materiens teori) ; E. Salinas
Adsorption and Phase Behaviour in Nanochannels and Nanotubes (2010)
[Kapitel]

Starting from an atomistic approach we have derived a hierarchy of successively more simplified continuum elasticity descriptions for modeling the mechanical properties of suspended graphene sheets. We find that already for deflections of the order of 0.5∈Å a theory that correctly accounts for nonlinearities is necessary and that for many purposes a set of coupled Duffing-type equations may be used to accurately describe the dynamics of graphene membranes. The descriptions are validated by applying them to square graphene-based resonators with clamped edges and studying numerically their mechanical responses. Both static and dynamic responses are treated, and we find good agreement with recent experimental findings. © 2010 Springer Science+Business Media B.V.



Denna post skapades 2016-05-11.
CPL Pubid: 236226

 

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Institutioner (Chalmers)

Institutionen för teknisk fysik, Kondenserade materiens teori (1900-2015)

Ämnesområden

Materialteknik

Chalmers infrastruktur