investigation on mechanical properties of clay-polymer nanocomposites

Hi all

I have a question and need for guidence.

I' m working on mechanical properties of polymer based nanocomposites as my thesis. I'm a beaginer in open sourse FEM programs.

I want to modele clay, polymer and specialy interactions between them to investigate bending properties and enhancements.

Is it possible for me to use commercial programs like  ABAQUS? Which programe do you prefer?

I will appreciated if any one could help me to identify witch method is more suitable for investigation in this field.

Thank you.