How do I use and where do I find shared/pre-existing 3D models?

Hello all,

I am a student that just joined a research group at TCD in Ireland. I have just learned how to use Abaqus this past week and it is going fine so far however now that I have the basics down I want to import pre-made 3D models and constitutive relationships so that I don't have to start from scratch. I can't seem to find an archive where people share these models. Am I missing something or is it right under my nose somewhere? Any help would be greatly appreciated!

Thanks,

Sean