I'm trying to model a dog bone specimen in Abaqus, but my elements should be super small (in micro-scale) . Although I have tried to make the model as small as possible, still I end up running the job with at least 2 Million elements.

As I have shown in the picture, it is a very simple model and I only need the yellow portion to have super small elements and the green portion can have larger elements but not larger than what is necessary for nonlinear wave propagation analysis. No matter how I create the mesh, my computer (which is corei 7 with 32 GB RAM) can not run the model. (even 1 increment) 

Now I would appreciate it if anyone has any ideas or suggestions on how to properly mesh this part or any substructure modeling so that I can run this problem. 

P.S: I have already used symmetric BC

Thank you in advance,

Negar

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