I send you a sample input file and data file for mechanical properties of CNT.
you can use VMD or nanotube modeler for grabbing atomic coordinate of CNT. I suggest using nanotube modeler.
you can find it here:
then use the sample data-file for creating your own CNT. I used a combination of EXCEL and nanotube modeler.
contact directly for more information.
CNT.rar (5.54 KB)