Carbon nanotubes (CNTs) are carbon allotropes with a cylindrical nanostructure. Because of their unique properties, they appear in many nanotechnological, electrical, and material science fields. It is also useful as a structural additive. Multiscale modeling is a great tool to study the property, structure, and performance of CNTs, and the finer-trains-coarser approach is used. 
At the atomistic scale molecular dynamics has been used to model loading on carbon nanotubes to develop a mesoscale description of carbon nanotube arrays. The results from the MD simulations are used to determine parameters for a higher lengthscale. Table 1 provides a summary of parameters that can be found at the atomistic scale for CNTs, which were determined by Cranford and Buehler  These parameters can be used for development of coarse-grain potentials.
[[Image:Summary.PNG|thumb|center|500px|Table 1. Summary of Parameters Determined from Atomistic Scale Simulations for upscalingCite error: Closing </ref> missing for <ref> tag
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