By Hiroyuki Shima, Motohiro Sato
Carbon nanotubes provide large strength in such a lot of fields due partially to their major mechanical homes, together with remarkable tension, resilience, durability, and adaptability. Mechanical deformation of carbon nanotubes is understood to reason significant adjustments of their actual and chemical homes throughout the nontrivial structure-property correlation. a powerful figuring out in their deformation mechanism and to be had geometry is, accordingly, an important to constructing nanotube-based functions. This ebook concentrates at the notable mechanical houses of carbon nanotubes, masking theoretical and experimental progresses from the final decade.
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Additional resources for Elastic and plastic deformation of carbon nanotubes
The beam theory has thus been frequently used to model not only C–C bonds but also the carbon nanotube itself. 5 Axial and Bending Rigidity for Shells Structural modeling as thin-walled curved and cylindrical shell components is also widely used in many ﬁelds, such as civil, architectural, oﬀshore, and mechanical engineering and aircraft structures. The examples include pipelines, pressure vessels, airplane, and a wide variety of spatial structures. From the structural mechanics point of view, trusses and beams shown in the preceding two sections are considered onedimensional members.
Electron beam irradiation  is one of the possible routes as discussed in Chapter 10. 6 Tensile Loading The tensile loading experiment is one of the ordinary techniques for macroscopic elastic materials. To apply this technique to a carbon nanotube, it is connected to two opposing AFM cantilevers as shown in Fig. 5. The one cantilever is “compliant” and the other should be “stiﬀ” such that the ratio of the cantilever spring constants is typically greater than 10. By recording the whole tensile-loading experiment, both the deﬂection of the soft cantilever (that determines the force applied on the nanotube) and the change in the nanotube length were simultaneously obtained.
34 nm), but there is no universally followed convention. Unlike that of a macroscopic tube, the “thickness” of a graphene wall seems to be a rather arbitrary notion because it has a meaning only in the framework of a continuum model. It is, however, an important quantity since it determines the moment of inertia of the nanotube, speaking in terms of continuous elasticity, and so the ﬂexural behavior. A number of papers have addressed this problem using diﬀerent approaches [74, 79–82]. a aA number of calculations on nanotube elasticity have been performed since the discovery on 1991.
Elastic and plastic deformation of carbon nanotubes by Hiroyuki Shima, Motohiro Sato