How can I find IFSS for functionalized CNT /epoxy system?

Hello everyone, I have built the system using Amorphous module where functionalized CNT is filled with crosslinked epoxy. There is crosslinking between the functional group attached to CNT and epoxy. As I used COMPASSII which doesn’t allow the breaking the bond between the functional group and crosslinked epoxy. So what should I do? Is there any way to do in Material Studio? Or I have to go for LAMMPS software.